>And exponentially increasing fee does not allow an indefinite term because noone has infinite money. At some point the fee will be more than the entire global wealth.
Don't be obtuse. If 20 is too long, telling me that it can't actually be indefinite* isn't a great argument. So it can be 40 years if they pay? How is that better?!?
Literally exponentially increasing means that if the fee is $2 in year one, it's just over a trillion bucks in year 40. Even with inflation, if a patent is important enough to someone to finance the entire welfare state, I say let them have it, and I'm an IP abolitionist too.
Don't be obtuse. If 20 is too long, telling me that it can't actually be indefinite* isn't a great argument. So it can be 40 years if they pay? How is that better?!?