According to estimates by Forbes, lost bitcoins are roughly 2.7 million to nearly 4 million. That's roughly 17% to 23% of the total 21 million unearthed bitcoins by the year 2040. And many of these bitcoins were lost in the early stages of our most favored cryptocurrency.
I do not know how these numbers guessed, but it seems exaggerated.
It is also difficult to verify the loss of coins since it can only be known by confirming the owner's claims to lose access to those addresses "Pvt keys."
Rumors of Satoshi Nakamoto's wallets amounting to nearly 1 Million bitcoins that has remained untouched till date are a big percentage of lost bitcoins already.
Maybe Satoshi will back, so can't be counted with the lost coins.
So the next time you lost your wallet (which i sincerely hope you don't), may the thought that you made everyone else a bit more richer cheer you up.
The lost coins are not affected because many of the new coins will be produced.
Perhaps in the future make up a difference after the impossibility of mining.
I do not think the number "21M" will make a big difference as bitcoin can be divided up to Satoshi, the only winners are those who joined early.