You're familiar with the trolley problem, right? (Here's a different take from The Good Place . Trigger warning: copious fake blood) Here's a variation that came up in astronomy class the other day. It didn't start off as a traditional trolley problem. We were discussing government spending. We're pretty sure that a dinosaur killing sized asteroid is not currently heading towards us due to projects such as ATLAS . We could be even more sure if more money was given to build telescopes. However, any funds given to telescopes is less given to other causes (say for example orphans). Both protecting the Earth from asteroids and helping children are good things. We cannot fully solve either problem no matter how much money we throw at them. So, in this case the question comes down to how much is too much? To keep it simple, let's pretend these are the only two funding issues. If we miss seeing a massive asteroid in time, it could kill everyone on Earth. On the ot...
Blog started at my students' urging. Many different things will be talked about here.