Exactly. Hodl'ing makes sense, sure. But for something like 100 years like the op is joking about, or even just a decade, it's impossible to know where bitcoin will end up. I don't think it's a good idea to hold until the end no matter what, especially if some altcoin comes out that improves on bitcoin. Blockchain technology will probably be here to stay, but bitcoin, everyone can be a little skeptical about. I think it'll be here for a while, but I just don't think it'll be a super long time.