So, much like a Premium Bond, then. These have been issued by the UK government since 1956, using an "electronic random number generator" that originally used vacuum tubes as a source of randomness...
If lending money on compound.finance is a 100% safe and guaranteed way to make money, why bother joining the pool? Why not just directly lend your own money yourself and get 100% of the profits 100% of the time?
This is very interesting. Seems like a good way to get people to save.