I feel like it’s very easy to miss signals from advanced civilizations because there is so much noise in the universe. There are also a lot of practical concerns with colonizing large swathes of space. A Von Neumann probe is very risky because it can “get cancer” and replicate out of control.
I feel like it’s very easy to miss signals from advanced civilizations because there is so much noise in the universe. There are also a lot of practical concerns with colonizing large swathes of space. A Von Neumann probe is very risky because it can “get cancer” and replicate out of control.
There are probably highly effective anti-cancer methods which have a modest performance overhead.