Plus he’s just fun to listen to!

all of humanity’s radio communications have traveled about 200 light years from Earth

Also interesting is that because the energy of those signals is spreading out as they move away from their point of origin they become less detectable as they travel. Most signals would fall below practical detection limits before making it halfway to the nearest star. At the extreme, the Arecibo Message, transmitted with a ridiculous ERP, will be detectable to reasonably sized receivers for tens of thousands of light years, assuming they are located along the path of the beam.

Tom Paris and the Cochrane have entered the chat

Does Singer explore how the limits of one’s knowledge about the impacts of their actions might play into the decisions?

Like, I could send $5 to some overseas charity, but I don’t have a good way to know how that money is being used. Conversely, I could use it locally myself to reduce suffering in a way I can verify.

It seems to me that morally I should prioritize actions I know will reduce suffering over actions that may reduce suffering but that I cannot verify. Verification is important because immoral actors exist, so I can’t just assume that moral actions that I delegate to other actors will be carried out. Since it’s easier to have good knowledge about local actions (in particular those I execute personally), this would tend to favor local actions.