3 ms·
In our solar system? We don't know. In our galaxy? We don't know. In the universe? We don't know.
by tymekpavel 13y ago
In our solar system? We don't know.
In our galaxy? We don't know.
In the universe? We don't know.
- loqi 13y agoIndeed. I don't see how we can even get a reasonable bound on the exponent of P(alien life). That kind of uncertainty behaves counter-intuitively - multiplying it by the size of the universe leaves it essentially unchanged.