I think bitcoin can do really last for a long time span even more than 100 years since in our current time we can see and observe that the price is really pretty that it has already reached its highest price mark of $6,000 from its dump. Bitcoin has already proven that it has the capability and capacity to make itself rise to last longer and make it more beneficial to its users. So I bet, with this situation bitcoin can do last for a longer time span because it can attract many people to get engage to it to gain more support that will lead to make bitcoin last longer.