I meet loads of people who have collected coins everywhere. They have 20 different types of wallets with a little bit of value. It's due to happen that people will loose their private keys or forget that they even have an account. Over time that value could accumulate pretty big. What will happen to these 'lost' coins? Will these stay on the Blockchain forever, accessible to no one anymore?
If those coins cant be accessed anymore due to lost of private keys or seeds then those coins would really just remain on the network but those are lost forever on the void.It is not dead but those coins are useless since no one would able to touch those coins anymore.This is why if we do have lots of coins on a specific wallet we should really be responsible on keeping out wallet informations like keys or seeds because these things are the most important.