Accidental Genius

genius, badge

What’s up ? This is THE stephane ANDRE !!! I heard Olivier Roland’s tips and I learned some good stuff.

There is an interesting book by Mark Levy named Accidental Genius . This book explains a method to unleash your creativity and brain’s power to find solutions to your problems.

This book doesn’t speak to the fact that supposedly we use only 10% of our brain but rather that we underestimate an important thing, write what we think. When we think without written support, we deprive ourselves of an enormous source of structuring thoughts. Our thoughts go further and more structured when we think in writing than when we think in our head and we forget those thoughts very quickly.

Unfortunately, there is a difficulty. It’s that we write very slow compared to the speed we think. But Mark Levy has a method to overcome this difficulty, it’s free writing.

Free writing

write, pen, free, writing

Choose a problem that takes your head, take a piece of paper or open a document on your computer and start writing all that happens in your head.

For exemple, if you wan to start a company, the problem can be : « how can I start a profitable company as soon as possible ? ». Like a brainstorming, you write a maximum of idea in a minimum of time. To ease this process, ,you write without paying attention to grammar, vocabulary, syntax, punctuation, etc. You write with lots of mistakes to make it fluid. Anyway, you don’t write for someone, you write for yourself so you can let go, write whatever you want.

When you have a moment where you block, keep writing. You can write 40 times the same word, it doesn’t matter. As you continue to write, you will force your brain to find other ideas and to return to the flow of thoughts. It’s advisable to do this for 10 minutes.

I tested this method and it’s surprising but I have to use it more often to develop this skill. What I like with this method is that I can use it for all areas of my life and it takes 10 minutes in the day.

My question is, are you also going to test this method or are you one of the people who reads my blog to make yourself feel good ? What are you doing ?

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph

P.S. If you’re in Miami and you like Caribbean food, go to my cousin’s bistro to eat Haitian food, click here .

Emotionally Manage Negative Reviews

emotionally, manage, negative reviews, excellent, good, average, poor, worst

What’s up ? This is THE stephane ANDRE !!! I watched an Olivier Roland’s video and I learned some good stuff.

When we have company, we read customer reviews to improve the products/services. But we have a way of thinking that can hinder the company’s evolution. Here is an example, for a product the are 10 positive reviews and 1 negative review. The problem is that the entrepreneurs will think 1000 times more about the negative review rather than 10 reviews positive.

Bad comment

emotionally, manage, negative reviews

To change this way of thinkging, it’s necessary to understand that this is part of human nature. We have been educated by evolution to focus more on negative things than positive things. And yes, our ancestors lived in an unstable environment during the vast majority of the existence of the human being. Here are some examples :

  1. Our ancestors were very attentive to the elements that were partially negative. They could be very happy, have a great day but they had to pay attention to the powerful animals that could, by surprise, kill them.
  2. Our ancestors had to pay attention to the disputes that had in the village because these disputes could deteriorate the village’s stability. This can result in creating friction that undermines trust in terms of collaboration for survival.
  3. Our ancestors were never satisfied with their situation and this motivated them to improve their lifestyle through science.

Solution

emotionally, manage, negative reviews, positive

As you’ve seen, this is a way of thinking that we have in human nature and there are some tips to avoid being obsessed with these negative reviews. I propose 3 solutions :

  • Ignore them. The more negative reviews you see, the more you’ll be desensitized to that. It’s not very complicated because if your company is working well, you have few negative reviews.
  • Delegate the management of reviews to a member in your company. This allows you to avoid being on the front line in the emotional impact to be less affected. It’s true, this solution have a problem. It creates distance between the entrepreneur and the customers feedbacks. It’s for this reason that it’s recommended to set up a procedure for the member who handles the reviews saying : « From now on, it’s you who manages the reviews. The thing I would like you to do is that you only transfer negative constructive reviews to me ». Negative constructive reviews are the criticisms where you see the urge to help.
  • Create an email address only for positive reviews. For example, you can name this email : « positivereviews@yourCompanyName.com » and tell to the person who manages the reviews that each time he/she receive a positive reviews, he/she send it to this email. You can also tell to this person to make a screenshot of a positive review from social media and send it to this email.

With this email address, you create the email of happiness. This will be useful for moments of demotivation and doubt. If, for example, there is an negative reviews that makes you feel bad and you think about it several hours later, you can log on this email, read positive reviews and realize that you’re doing a good job. It’s really a special feeling to know that you’re changing the lives of many people. It’s really fantastic and it allows you to relativize.

It’s possible to make a combination of the 3 solutions. It means, you force yourself to read the negative reviews to desensitize you ; you delelgate part of the process to manage the reviews ; you create a magical email as a psychological support.

These solutions allow you to put things in their place so that you don’t get overwhelmed by negative emotions.

It’s possible that you know of other methods to handle negative reviews, if it’s true, share your method with us in the comments section.

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph

P.S. If you’re in Miami and you like Caribbean food, go to my cousin’s bistro to eat Haitian food, click here.

Sudden Cardiac Death

sudden, cardiac, death, hearth, sport, athlete, scd

What’s up ? This is THE stephane ANDRE. With my training, I’m interested in biomechanics to avoid injuries. I read « Sport Medicine Media Guide » and I learned some good stuff.

Sudden cardiac death (SCD) is an extremely rare event. The most common reason for cardiac death related to sports is the cardiomyopathy hypertrophic, an abnormal enlargement of cardiac muscle. It’s a rare heart disease that predispose a person of SCD because of physical exertion.

Commotio cordis is another reason for SCD. It’s a direct trauma to the chest at a specific moment in the cardiac cycle and this trauma triggers a dangerous arrtyhmia (abnormal rhythm) of electrical system of the heart. A commotio cordis usually arrives in sports where a blunt projectile, such as baseball ball or hockey puck, hits the athlete’s chest.

Treatment

Cardiac arrhythmias that threaten the lives of young athletes are very difficult to treat. The immediate use of AED (automated external defibrillator) can provide an advantage.

Prevent

sudden, cardiac, death, sport, hearth, athlete, scd

Unfortunately, the only way to prevent death from hypertrophic cardiomyopathy is to identify the disease and recommend the athlete avoid any strenuous activities. Cardiac ultrasound can diagnose this condition. Some experts have called for the screening of athletes with ultrasound or electrocardiograms (EKG), although this screening is controversial because of the high cost and scarcity of this condition.

However, athletes with cardiac symptoms such as dizziness, fatigue, shortness of breath in relation to physical activity, palpitations, convulsions and especially syncope (fainting) must stop the competitions and must do deeper tests.

In addition, a family history of cardiac abnormalities justifies a complete cardiac evaluation. Especially a known parent with hypertrophic cardiomyopathy or a history unexplained sudden death in a family member.

There is the creation of different forms of protection for the chest and pads, but unfortunately no method has prevented this tragic event. The rules regularly change in the sport and some times to try to avoid commotio cordis. For example in baseball and softball, it’s the limitation of the use of aluminium bat. This rule can protect the pitcher by decreasing the speed of the ball after contact with the bat. There are other rules too, such as using a softer ball and teaching players to turn their chest when the ball is hit by the bat.

Stats

  • Fortunately, SCD is extremely rare in the sport. For the majority of people do sports to cardiac benefits.
  • In young athetes, the most common causes of SCD are 25-30% hypertrophic cardiomyopathy and 20% commotio cordis.
  • Coronary artery abnormalities are the cause of 14% of SCD in athletes.
  • Marc-Vivian Foe, a Cameroonian soccer star had a sudden cardiac death during a match in 2003.

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph

P.S. If you’re in Miami and you like Caribbean food, go to my cousin’s bistro to eat Haitian food, click here .

Trick To Be More Productive

work

What’s up ? This is THE stephane ANDRE !!! I watched an Olivier Roland’s video  and I learned some good stuff.

Have you ever finished a day completely exhausted and after analysis, have the impression of having accomplished nothing ?

Don’t worry, it has happened to me and it happens to everyone a few times. The truth is that it’s important to understand that there is a difference between being productive and being busy. It’s really something that you have to remember often.

To be busy

Here is an example, imagine that you spend all day pushing a building with hands. It’s serious, you really want to move the building. It’s obvious that at the end of the day, you’ll be very tired but the building will not move.

You’ll have to spend a lot of energy, give a lot of effort but the results are negative, the building did not move a millimeter. In fact the efforts you make aren’t systematically correlated to the results you will get.

With the building’s example, it’s easy to understand that this task destined for failure but with the activities of every day, it’s more complicated to identify.

Let’s use another example. Imagine that you spend all day pushing a block of stone on the sand. At the end of the day, the block of stone will have been moved a little bit (and this is a better result than with the building). But is there a way to move this block of stone faster ? Yes, with a crane, it’s more efficient and it takes less effort. It’s true that finding a crane requires a lot of energy and time, but the crane allows you to have better results more impressive. With the crane, you can move the block of stone in 30 minutes to the destination.

To be productive

be productive

Often the methods to be productive requires a lot of effort and you have the impression to build nothing, but when the methods are put in place, it will give you continuous results without asking you a lot of effort.

Today, after my training, I spoke with a gym employee about blogs. He wondered why I had a blog because for him blog are dead. It’s true that blogs are less fashionable than videos and it’s true that a blog takes years to have an interesting traffic to build a company.

But what he doesn’t see and what the majority of people don’t see is that if the content of the blog has no expiration date, 5-20 years later, your blog’s content will have always value and will be usable. If yo create content based on news, 2 months after your content is no longer valuable and no longer usable.

And it must be added that the blog’s mailing list is more efficient than social media’s subscribers when it comes to promoting your product/service. It also makes me think that since 2005, every year, people say email is dead, ahhaha haahahah.

Vision

It’s not easy to realize that we’re busy instead of being productive and it depends on our perception. By having a clear vision of what you want, you create a company that is at the service of your life rather than your life at the service of your company. Creating content with no expiration date to educate people is my vision. On internet, one of the keys to success is to be able to create the maximum content without expiration date to not be dependent on fashion phenomens.

With this vision, it helps you identify when you’re busy and when you’re productive. This skill allows you to search for what is most effective to reach your vision. At first, there are things that you consider effective and they’re not and vice versa. The process to reach your vision is to explore new things to move forward and grow.

Have you already identified things in your work that you think are effective and in fact they aren’t (like pushing a building with your hands) ?

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph

P.S. If you’re in Miami and you like Caribbean food, go to my cousin’s bistro to eat Haitian food, click here.

Start A Smart Company

startup company data

What’s up !!! This is THE stephane ANDRE. I watch an Olivier Roland’s video  and I learned some good stuff.

To create a company, most people advise to leave school or job to be 100% focused on creating the company. I advise you to start your business part-time and continue your school or job. An excellent method for this is « Lean Startup » . The principle of Lean Startup is to put on the market as fast as possible your product/service at minimum viable.

2 different methods

method scientific

Classic

Let’s take a closer look at what most people do. A person has an idea to start a company, so this person does a market research to minimize the risks. Then this person will seek financing with bank loans after calculating the needs of the business. These business needs based on a 3-years business plan that is extremely theoretical and hypothetical. You should know that in 99% of cases, as soon as the company is open and prospects are in contact with the products/services, these business plans have no connection with the reality of the field.

The problem with this method is that this person works for 1 year to create a product/service and when it’s available, this person realize that everyone doesn’t care. When the product/service isn’t selling, the stress rises enormously and you have to find a way to pay back people who lend money to your company.

Lean startup

With the Lean Startup’s method, when a person has a product/service idea, the principle is to find the minimum basic function of that which would interest the audience and the prospects who would be willing to buy. Then you have to do a test as soon as possible on the market. There is something very important that Michael Masterson said : « Before your business make its first sale, it’s nothing more than a set of unproven ideas that you are spending money on ».

That is why it’s necessary to set up a field test in the most real conditions possible with the most minimal version of your product/service.

Here is an example with someone who wants to buy a parking lot to rent it :

  • With the classic method, this person bought a random parking lot hoping to have many prospects interested in renting it.

  • With the Lean Startup method, this person will find an interesting parking lot to buy. Then this person will post an ad in an ads posting site and on social media and will wait to see if there are peope interested in renting it. If people call this person to say : « I’m interested in having your parking lot, I’d like to rent it », in this case this person will buy the parking lot. If nobody is interested in the parking lot, this person will not buy it.

Test quicky

test field

There are several other methods like this to test. In my case, it’s my blog to build my brand and until today, I’m doing it part-time. Here is a 3-part article in the power of a blog ( here  ).

Create my blog allowed me to :

  1. To know if I could find and keep my rhythm to write articles

  2. To know if I could share interesting things to create an audience

  3. To know if I could possibly monitize this blog with this audience

Once you have the idea, you need to test it as soon as possible to see what is happening on the field to collect feedback from the first customers and to know if you have an interesting business model or not. This test is excellent for eliminating a lot of uncertainty.

The cool thing about the Lean Startup method is that you’ll really start investing a lot of time, money and energy when you have your first customers who will help you improve your product/service.

Let things be clear, Lean Startup isn’t a magic formula, it’s necessary to act and start the process again, until you have a product/service that interest people.

Subscribe to my newsletter and share this article if you think it can help someone you know.

-Steph

Acromioclavicular Joint Injury

acromioclavicular joint injury

What’s up ? This is THE stephane ANDRE. With my training, I’m interested in biomechanics to avoid injuries. I read « Sport Medicine Media Guide » and I learned some good stuff.

Acromioclavicular joint is a joint between the clavicle and the scapula. Acromion is a continuation of the scapular spine and hooks over anteriorly. It articulate with the clavicle (collar bone ) to form the acromioclavicular joint.

Problems types

The most common problems are arthritis, fracture and separation. Arthritis is characterized by a loss of joint’s cartilage. Arthritis of acromioclavicular joint is common with weight lifter, especially with bench press and a little less with shoulder press. When there is a problem with the rotator cuff, it’s possible that there is also acromioclavicular joint’s arthritis.

Acromioclavicular separation

acromioclavicular joint injury type grade

When there is an acromioclavicular joint separation, it means that the ligament that connects the acromion and clavicle is damaged and that the 2 structures don’t align properly. Separation’s state can be weak or severe, that is why there is a system of « grade » according to which ligament is torn and the severity of the tear.

Grade I Injury – This is the weakest damage and the acromioclavicular joint is still aligned.

Grade II Injury – This is an average damage. Ligaments are only stretched but not fully torn. In case of stress (physical effort), the acromioclavicular joint becomes painful and unstable.

Grade III Inury – This is a serious damage. Ligaments are completely torn and the collar bone is no longer attached to the scapula, which creates a visible deformity.

Treatment of acromioclavicular joint arthritis

If the rest, ice, medications and change of the training program (changing the exercises) don’t work, the next step is a shot of cortisone. A shot of cortisone in the joint may have calmed the pain and may be permanently swollen. As each individual is unique, the effects may vary and it’s possible that it doesn’t swell permanently.

If non-surgical methods fail, it’s possible to perform a surgical operation. The pain is localized at the bones end that make contact with each other and the goal of the operation is to remove some of the end of the clavicle. This ambulatory surgery can be done with a small incision of 1 inch (2.5 cm) long or with the arthroscopy technique with 2-3 incisions. The results and recovery of these 2 surgical techniques are about the same. Most patients have a full movement by 6 weeks and can return to do sport by 12 weeks.

Treatment for acromioclavicular separation

Separation can create very painful injuries, so the first thing to do is to decrease the pain. Hold the arm in a sling, put ice and pack the shoulder for 20-30 minutes every 2 hours as needed. Acetaminophen and non-steroidal anti-inflammatory medications can also help calm the pain.

When the pain begins to subside, it’s important to move the fingers, wrists and elbow (and eventually the shoulders) in order to avoid having stiff or « frozen » shoulder. The length of time needed to regain complete movement and function depends on the severity or injury’s grade.

Recovery from Grade I acromioclavicular separation usually takes 10-14 days while Grade III takes 6-8 weeks.

When surgery

Grade I and II separations require very rarely surgery. With a Grade III injury, after surgery, it’s possible to have full body physical activity with some restrictions.

Statistics

  • More males than females suffer acromioclavicular joint injuries

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-Steph

Chi-Square Test With More Than 2 Categories

tableau chi square test

I have just enrolled in a Data Science course on Udemy  and I learned good stuff.

In this article, we will do a Chi-square test with more than 2 categories. We will use the A/B test « Country » which has 3 categories which corresponds to 3 countries : German, Spain and France. Select « Gender Actual » tab, make a copy with a right-click and select « Duplicate ».

tableau chi square test

Name the tab « Gender Actual (2) » by « Country Actual ».

tableau chi square test

In « Dimensions », move the variable « Geography » over « Gender » in « Columns » to replace « Gender » with « Geography ».

tableau chi square test

tableau chi square test

Here’s how to do an A/B statistical test when there are 3 categories. We’ll start with the classic method and then I’ll show you another way to do Chi-square test with any number of categories.

Let’s start with the classical method. In this case, there are 3 categories so we can’t use the online tool of the previous article. In the previous article we used an online tool with only 2 categories « Sample1 » and « Sample2 ». That’s why we’re going to use another online tool, click here  .

tableau chi square test

In this online tool, we can enter the values without using the total values. That is, we enter only the number of observations in each category. We simply need to enter the values that are on our A/B test. And I’m going to show you how to turn our A/B test into a table. In this way, it will be easier to enter the values in the online tool without making any mistakes.

Go to the « Show me » tool at the top right.

tableau chi square test

Click on « text tables »

tableau chi square test

tableau chi square test

Click on « Swap Rows ans Columns » button.

tableau chi square test

tableau chi square test

Cool, now you have a table arranged in exactly the same way as the online tool.

In the online tool, we will select 2 rows and 3 columns.

tableau chi square test

As we have 3 categories and 2 possible results, we enter our values exactly as in the table we just created on Tableau.

tableau chi square test

Perfect, our table is ready. You can click on the « Calculate » button.

tableau chi square test

tableau chi square test

As you can see, we observe the same thing as the other online tool. There is our indicator « p » value which is less than 5%. Which means there is a meaning.

tableau chi square test

This statistical significance means that these results are valid for the total number of the bank’s clients and not just for the sample of 10 000 clients. We observe similar differences with A/B test « Country » whose results are based solely on the sample of 10 000 clients. We can conclude that in the total number of the bank’s clients, it’s the clients in Germany who are more likely to leave the bank. This is how we do things cleanly.

You saw, this online tool limited by 5 by 5 tables so you can’t use this tool when you have 6 categories or more. But fortunately it’s possible to do Chi-square test with any number of categories. It’s a special method and for you to understand that, I’ll give you a theoretical explanation.

Here we have 3 countries : German, Spain and France.

tableau chi square test

What we’re trying to compare is the clients number leaving the bank in each of these countries.

tableau chi square test

With our basic A/B test based on a sample of 10 000 clients, we obtained 16% for France, 32% for Germany and 17% for Spain. Now the question is : « Do we observe the same results on the total clients number of the bank ? », it means : « In general, does the country have a significant effect on the clients number leaving bank ? ». Germany has the largest number of clients leaving the bank so the idea is : « Why would we need to compare the 3 countries at the same time ? ».

tableau chi square test

If we do an A/B test statistical test with Germany and France and we get a significant difference in the clients number leaving the bank between these 2 countries, then that would mean that in general, the country has a significant effect on the clients number who bank. Indeed, if we find by comparing Germany and France that the Germans are more likely to leave the bank than the French, we can consider that Spain will not change anything. Germans will always be more likely to leave the bank than the French. Maybe there will be a different relationship between Germany and Spain but there will always be a statistically significant difference between France and Germany with a larger number of clients leaving the bank in Germany than France.

Here is a way to confirm that this logic is true. There is a test and the participants of this test are German, Spanish and French. Imagine that this test was done without looking at what is happening in Spain. Now you get the result and you ask yourself the question : « Would the results changed if you added Spain ? ». The answer is « no » because there is no interdependence between Germany, Spain and France. That is, the decision to leave the bank in France and Germany doesn’t depend on Spain. And therefore, it’s quite correct to separate the categories by putting 1 aside to compare the 2 others. And as now we have 2 categories, we can do a Chi-square test with the online tool that we used in the previous article.

So let’s go back to our worksheet and put a country aside to compare only 2 countries. Select « Country » tab.

tableau chi square test

What we observe is that the difference between Spain and France is very small, so it wouldn’t be interesting to do a Chi-square test between Spain and France. It’s more interesting to do a Chi-square test between Germany and France and to prove that there is a statistically significant difference between these 2 countries. This will be enough to conclude that the country has a statistically significant impact on the clients number who leave the bank.

Selects « Country Actual » tab.

tableau chi square test

We will use the online tool of the previous article, click here  .

We will make a copy of « Country Actual » to have a bar chart with absolute values. Select « Country Actual », right-click and select « Duplicate ».

tableau chi square test

In « Show Me », select « horizontal bars ».

tableau chi square test

tableau chi square test

Removes « SUM (Number of Records )» from « Columns » and removes « Exited » and « Geography » from « Rows ».

tableau chi square test

tableau chi square test

In « Dimensions », move « Geography » in « Columns ».

tableau chi square test

tableau chi square test

In « Measures », move « Number of Records » to « Rows ».

tableau chi square test

tableau chi square test

In « Measures », move « SUM(Number of Records) » in « Label ».

tableau chi square test

tableau chi square test

In « Dimensions », move « Exited » in « Label ».

tableau chi square test

tableau chi square test

In « Dimensions », move « Exited » in « Colors ».

tableau chi square test

tableau chi square test

We also need total absolute values, which means the total number of men and women. There is a very fast way to get that. Right-click on the vertical axis and select « Add Reference Line ».

tableau chi square test

Then in « Value », click on the drop-down on the right and select « Sum » to have the total sum of the observations.

tableau chi square test

And in « Scope », you select « Per Cell » option to specify that you want the total sums for each category, male and female.

tableau chi square test

Now, we have the total sum at the top of the bars. We will modify labels to have the absolute values. In « Label », we will change « Computation » to « Value » and click on the « OK » button.

tableau chi square test

tableau chi square test

tableau chi square test

Here’s how to enter the data :

For « Sample1 » in #success, you enter 810 because there are 810 people who left the bank. For « Sample1 » in #trials, you enter 5014 because there are 5014 people in total.

For « Sample2 » in #success, you enter 814 because there are 814 people who left the bank. For « Sample2 » in #trials, you enter 2509 because there are 2509 people in total.

tableau chi square test

Here is the verdict : « Sample2 is more successful ». « Sample2 » corresponds to German’s clients and #success is :« yes, the client left the bank ». This verdict means that of all the clients from German are more likely to leave the bank than clients from France. And look, there is something important, it’s « p<0.001 ». This means that the « p » is strictly less than 0.001. As you can see, « p » value is very small, which concludes that the tests are statistically significant.

Ooh, there’s another thing I wanted to show you with the tab « age » with the 2 bar charts in parallel.

tableau chi square test

As you can see, there are many categories (more than 5) because each category corresponds to a 5-year ago group with clients of the bank aged from 15 to 90 years old. This is a lot of comparison but it would be a good exercise for you to find what are the 2 categories to compare that shows that there is a significant statistic difference.

I give you a hint, compare slices from 50 to 54 years old or from 35 to 39 years olds. In fact, you should compare all peer categories where you observe difference on this basic A/B test. Do a basic A/B test with absolutes values. Then do a Chi-square test to check if the difference is statistically significant, I mean, if the result is valid for the total number of bank’s clients.

This is a way to statistically validate the insights we see onTableau. You see, it’s not very difficult and it’s effective. Here is a way to find insights on Tableau and validate them.

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph