The rule of two occupations

Recently i discovered that in the most efficient life schedule, you would always have only two major occupations at a time. That's also what i indefinitely try to follow. The combinations can be truly different:

Actually, the most popular combinations include something official + a hobby. But other combinations are also possible.

Reasoning

But why exactly two occupations? Not three, not one, not four? Here, I'll tell you why it's quite efficient to split your day into two separate parts, each of which is responsible for one of the two occupations. An average human needs around 8 hours of sleep to feel rested. This means, he has 16 hours of free time per day. Here we have two cases:

1. The person has job/education time

In this case, the division is pretty obvious. The job/education is one of the two occupations. It generally takes around 8-9 hours per day, so you are left with 7-8 hours of free time. The necessity of eating and having other minor tasks will take another couple of hours. Thus, the rest of your time goes to your second major occupation, because less time would be not enough to perform all the nice stuff and keep progress intact.

2. The person is totally free

This is a rare case, but you would ask why can't one have 3-4 or more occupations. My belief is pretty simple - naturally, the humans aren't prone to multitasking. One or two serious hobbies during a period of your life is the most efficient solution. On the other hand, how about having only one major occupation? Unfortunately, most people will burn out after some time of such a schedule. Though, i accept this might fit certain people.

Someone i know has tens of hobbies and is still efficient

Well, if he is efficient, he probably uses one trick, which i will tell about here. The combination of occupations doesn't have to be constant. For example, your combination can be Job+A personal project. The project takes around 2-3 months to it completion, but then it's over. You can throw it away from the combination, and replace with something else! Or, for example, University+A book. Same here. It also might be possible to alternate combinations:

Thus, the people you know are likely applying one of these techniques.

I'm very enthusiastic about some specific field

The good news is: that's fine, because two occupations can come from the same field. Just ensure that the difference between them is noticeable. For example, in the field of computer science the possible combinations are:

... and anything else. Thus, if the occupations share their field, the difference between them should be noticeable.

05th october 2021

Edited: 18th december 2021