There are currently ~16 million bitcoins in circulation at this moment. There will only ever be 21 million coins. What about all the coins that have been locked in wallets due to loss of keys, owners of wallets dying, etc...?
The number of lost coins is probably fairly small now but if Bitcoin is going to be relevant for who knows 100, 200 or 300+ years, this number will increase. I guess the reduction of "usable" coins will increase the price per coin and the majority of coins won't ever be lost so this not a significant issue.
Are there any solutions to lost coins or is this just a feature of the decentralized network?