Why are people so sure about the future success of BTC (something I've never seen with other asset types)?

This is something I've never heard when discussing other investment products. People seem to be 100% certain about BTC's path to success to the extent that you even see YouTube users claiming that BTC will definitely rise without the traditional disclaimers they usually use when talking about stocks.

Don't get me wrong, I've been researching BTC for a while now, but I don't understand why BTC provides some people with a level of assurance that other assets do not. When discussing other assets, that kind of excessive optimism would actually raise a red flag, wouldn't it?

$BTC $ETH #Shortbtc