Nobody is safe even the FIAT money I think but for me Bitcoin is more safer than FIAT in terms of robbery, so in short nothing is safe it's just how you can safe it.
How are you determining whether or not something is safer that BTC, etc? Biitcoin I though would be safer because there is no way to beat the system and take it. Unles your account is hacked and such, there is not much of a way to loose it. The same can happen to FIAT and all other coins. Just wondering what basis you are using to make this statement.
Good question though, Can you burn bitcoins with fire?, can you dig it under soil?
When you hoard FIAT money in a long period of time instead of investing it, loses value overtime.
When you hoard Bitcoin in a long period of time instead of investing it, it fluctuates no matter what.
Currency is a booster for people to move and do such things, Cryptocurrency or FIAT has a value that can be trade off, and by trading it risk is always there whether we like it or not.