Laughing at everyone saying “if I’d signed up in 2009 I’d have been a millionaire by now”. Also laughing, though not as hard as people saying it’s a Ponzi scheme. As a currency, it is accepted by several people, so it has some value. Is it worth €3500+ EUR per BTC? Who knows? Is the FTSE worth holding at its current value? Who knows.
You wouldn’t be a millionaire now because….
Maybe you’d have cashed out when it doubled in value.
Maybe you’d have cashed out when it plunged and cursed the day you “invested” in it.
Maybe like some others you’d have gotten greedy and “diversified” into a bunch of other altcoins which were basically scams.
Cryptocurrencies are very complex. I’ve done a ton of reading and am none the wiser about whether I should invest or not. If you have the cash to burn, then diversify and buy some. Or you can even hold it in a fund if you don’t want to deal with the complexities of exchanges, cold storage, forks, splits and all that shite.