Challenge Your Intelligence

brain scan

I watched an Olivier Roland’s video  and I learned good stuff :

Have you ever heard that : « If you’re smart and you’re always surrounded by idiots, you’ll always be right ».

Sincerely, there is a deep truth in it. This corresponds to this quote « If you’re the smartest person in the room, you’re in the wrong room ». We are human beings and it’s easy to follow your ego. It’s easy to stay in an environment where we’re always right because subconsciously we want to be around people who adulate us or put us on a pedestal.

When we look around, we see people who are successful and who stay in a bubble where they’re surrounded themselves with people who will always agree with them. It’s in our human nature not to like the contradiction of what we are and the values we defend. All of this is logical, we have success, we developed values and a life approach that we tested in the field and we don’t know others ways.

It doesn’t mean that in any case it works and that doesn’t mean that there are not other ways to succeed.

A group of intelligent people


mastermind group

When was the last time you were in a room where you felt that you weren’t the smartest person in the room and that you learned new things ?

What is interesting when yo participate in a mastermind group is that you’re surrounded by brilliant people who don’t hesitate to say when there are obvious things in you and you don’t see them. It allows you to change your point of view and forces you to face your own limiting beliefs.

Often during a mastermind group, there is a « hot seat ». A « hot seat » is when you share a specific problem and a specific question to the group. What is surprising is that we always see the same pattern that repeats itself. There is a person who shares a problem and a question and we see a lot of obvious things about the limiting beliefs of this person, how much that person has locked himself/herself into a part of the problem. From the outside, we see that there are other ways to attack the problem and we also see obvious solutions.

What’s interesting is that it seems extremely obvious for a person who is in the group to help find the solution but when you share your problem and your question, the group offers you things that you have never seen by yourself.

We all need a moment to take out our trash. We all need to share with a group what doesn’t work and what problems we have. Whenever we do that, we realize that we all have blind spots. Things that seem obvious to everyone but seem hard to see. It’s like seeing the flaws of another person but we don’t see ourselves our flaws.

Here’s an example, I’m ticklish. I can try to tickle myself, I can’t laugh but if someone else tickles me, I laugh immediately.

I can’t be at the window and see me walking in the street at the same time. So if you’re an entrepreneur and you feel isolated, break this situation. Go to events, try to meet other entrepreneurs because it will help you a lot.

You can’t know how many mistakes you make each day without realizing it. Only someone else can show you, your mistakes if you allow him/her to do so in a caring way. It’s not a matter of showing mistakes by accusing but in a kindly way to help you move forward. If you can participate in a mastermind group to be in a collective spirit of brilliant people, do it. It’s a great place to no longer be the smartest person in the room and learn new things to improve yourself.

Share this article if you think it can help someone you know. Thank you.


Add Color


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


In the last article, we created our calculated field « TotalSales » that you can see in «Measure » zone.

In Tableau, the calculated field is very used (almost every time) because in most case the data don’t give the value you want to show.

The calculated field « TotalSales » is a simple example to make you understand how it works but know that you can do things more complex. I’ll show you that later.

In this article, I’ll show you how to manipulate colors because it’s an important element to communicate. With colors, people will understand more quickly what you want to explain to them.

Imagine that you have to show this bar chart to the manager who handles the bonuses. By putting a little color, a little art, you could improve the reading of this bar chart.

To use colors, click on this button.

data science tableau color

You can change the color with the basic colors.

data science tableau color

Or you can have more colors by clicking here.

data science tableau color

If you have a picture in the background, you have the possibility to change the opacity to have a transparent effect of colors.

data science tableau color

You can add a border, change the border’s color, etc.

data science tableau color

But what would be nice to do is to have bars with different colors.

To start, take « Rep » and move it on « Colors ».

data science tableau color

With this, there is a unique color for each representative.

data science tableau color

There is also another method to do that. Instead of taking « Rep » and moving it to « Color », you can click « Rep » here.

data science tableau color

If you move it to « Colors », you’ll break everything because « Rep » will no longer be in the « Columns » zone.

data science tableau color

To avoid this, press Ctrl or Command on your keyboard and click « Rep » to make appear the sign « + ». Now that you made a copy of « Rep », move it to « Colors ». It’s like making a copy/paste from « Rep » to « Colors ».

data science tableau color data science tableau color

With this method, « Rep » is always in the « Columns » zone. This is a method that is very practical when there are many dimensions.

It’s possible to change representative’s colors by clicking here.

data science tableau color

As you can see, there are several choices of palettes.

data science tableau color

You can test the « color blind » palette which is very useful for color blind people. To select this palette, click « Assign Palette » and « Apply ».

When a palette has fewer colors than representatives, you will have a message saying that some colors will be duplicated. But this is not a problem because there are names below the bars.

data science tableau color

Now we want to see something else with our bar chart. Press “Ctrl” or “Command” on your keyboard and click on SUM(TotalSales) to display the « + » sign. Then move SUM(TotalSales) to « Colors » to replace « Rep ».

data science tableau color data science tableau color

As you can see SUM(TotalSales) has different colors. The colors are on a continuous basis which means that the more sales there are, the darker the color.

For our case, this is not useful because the size of the bars represents the sales number but for other situations, this is useful.

The problem now is that there are duplicate colors and because of this, the Manager could misinterpret the results. An alternative approach would be to ensure that the Manager understands the results.

The solution is to take « Region » (by pressing “Ctrl” or “Command” on your keyboard) and move it to « Colors ».

data science tableau color

You can also take « Region » (with “Ctrl” or “Command”) and move it to SUM(TotalSales) to replace SUM(TotalSales).

data science tableau color

With that, the bars are colored by region.

data science tableau color

That way, you can clearly see the 3 regions through colors that are unique to each region and you can see the total sales per representatives with the size of the bar.

This is a small example so that you can understand the basics to manipulate colors in Tableau. There are still more complex techniques to manage the colors that I will show you later.

Plays with the colors so you can fully understand how it works. You could find your favorite palette and find your style. Have fun.

Share this article if you think it can help someone you know. Thank you.