An explicit goal is that running a validator at home for the enthusiast should be feasible. A couple of days total downtime per year for an individual validato

An explicit goal is that running a validator at home for the enthusiast should be feasible. A couple of days total downtime per year for an individual validator should approximately only miss out on the rewards it would have generated by being available for the same period. Penalties increase non-linearly with downtime and number of validators unavailable at the same time (meaning assuming all else equal, being down for 100h at once is worse than being down 1h/d for 100 days, and a whale with 10 validators going down for 10h at the same time will lose more than an individual validator going down 10h at 10 different occasions. This is not contingent on those validators being attributable to the same entity) If you have monitoring that alerts you for updates and when your node is unresponsive and can respond to downtime requiting intervention within a day or two you should still end up ETH-positive.