Money does not necessarily work as a reward for better work

I really agree to this.
moreover, I wanna say

nothing from other people work as a reward better than the interest of own.

One source for this is the 20% rule of google.

One more, there exists "discounting principals"（割引原理）, which I learnt in Educational Psychology.
when there are two purposes to do a certain job and when one is focused, the other get less important.

For example, let's say we give students a puzzle and let them solve it.
It's fun for them and they enjoy it to solve the puzzle.
For next time, we give them one rule, that is, we give them some money if they solve the puzzle.

Then, surprisingly, the puzzle is not fun for them anymore.

For another example, the main reasons of getting a good grade in school are said to be "ability" and "effort".
When you say "I really worked hard for the test and got full max!", then many people would think "you weren't talented for study, so you needed to work hard."
I mean, if you emphasize "effort", your "ability" is regarded less.
and this is the main reason why many students turn defiant before test, otherwise, in case they couldn't get good grade regardless of their effort, then it shows that they don't have the ability.


Actually, even though I believe Ken introduces us great books and I wanna read all of them, once I regard it as a "reading assignment", I feel like I don't wanna read them.
So it's really helpful for me that Ken says that we just share ideas in the final project.

I wanna ENJOY the final project without any pressure :)