Bitcoin is a software, it will last forever, even it means that it only lives on a CD or a hard drive.
The question is: Is the value of bitcoin going to survive after 100 years? After 100 years, will it still be valuable?
Bitcoin is not a software like a CD or Hard disk. Nobody know that the value of bitcoin is going survie like now after 100 years.
it depends of supply and demand on the market.