I worry about my own organization being able to remember to renew its domain if we don't do it yearly. If I made a ten year payment, what happens in a decade if

I worry about my own organization being able to remember to renew its domain if we don't do it yearly. If I made a ten year payment, what happens in a decade if I'm no longer with them? Will they track down someone? Will the domain expire and get held for ransom? Setting aside the weirdness of making a 100 year commitment with a 20 year old company, what really does happen a century from now? Will anyone know whose responsibility it is?