[Pooge]

> it's worth holding only cash for 10 years if you're sure there will definitely be a crash some time in that 10 years

Oh, because you know for sure that there will be a crash in the next 10 years? A prediction like that alone is worth billions, and I honestly doubt that you're different from the thousands of other who advocated for the same thing since the last 50 years.

In real life, an investor starts to keep assets that aren't as volatile but still aren't cash (e.g. bonds) as he approaches retirement. But even then, if they retire officially (i.e. at 65) then they probably have a national pension to draw from anyway.

> also, is Bitcoin a currency?

I don't care about cryptocurrencies at all, but it is the same classification as gold. People use it to speculate and reassure themselves thinking that "if it goes bad, it will preserve my wealth" and it doesn't have any value except when you trade it with someone for a usable currency.