As of right now, the bitcoin price is expected to keep going up in the next 20 years. But can it last that long? I believe it's possible. But can't it crash at a random time? Like the price going down hard.
The simple answer is "yes"it will last longer than we think.
The crash at random times is really dependent upon the market situation. Bitcoin has crashed at least two to three times in a year and that followed every year if you see historic data for bitcoin. Juts checkout the recent event of hard fork and how bitcoin behaved during its implementation. It dropped dramatically and nobody ever thought of it like that way. Now the bitcoin is up again with double the price of crash! Thats the way bitcoin is evolving every year.
So according to me ups and downs in the bitcoin market is really normal thing and depends directly or indirectly with external factors. So ignoring that we could invest in the bitcoin easily and safely.
Yes, it will last longer without any further doubt really.