This unfortunately reminds me too much of stellar evolution timetable[1]:

> Star burns through a succession of nuclear fusion fuels:

    Hydrogen burning: 10 Myr
    Helium burning: 1 Myr
    Carbon burning: 1000 years
    Neon burning: ~10 years
    Oxygen burning: ~1 year
    Silicon burning: ~1 day

(...and then it goes supernova.)

I hope Bitcoin's end is not as violent. :/

[1] http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit3/supe...