Bitcoin Controlled Supply Satoshi has never really justified or explained many of these constants.





it is someone found out about this constants yet?

link: https://en.bitcoin.it/wiki/Controlled_supply
It is still unclear how Satoshi chose all the constants present in the Bitcoin protocol (10 mins blocks, 21 million coins, 2016 blocks intervals, etc...).

While we'll never know for sure the full justification until Satoshi manifests itself, we can try to come up with reasonable ones ourselves.

For example, it is supposed the total number of satoshis in existence has been chosen to fit in 64 bits (using a number larger than 64 bits would have made the implementation more complex), making the difficulty interval a power of 2 simplified a lot of maths, etc..