18/04/2020
Follow up from VU Philosopher Chris Ranalli, enjoy!
⚡️Corona epistemology, pt. II
While shopping at the grocery store for pasta and toilet paper during the covid-19 pandemic, G.E. Moore notices a couple of people who are coughing and appear a bit sick. He has a sudden realization:
1. "Here is one cough", as he anxiously avoids a youth wildy coughing. "And here is another cough!", as he passes a middle-aged person reaching for the chamomille tea.
Therefore,
C. "There are at least two people here with corona virus". QED.
Moore gets home, and rehearses this 'proof' to his family. He takes it to be decisive reason to believe that there were people in the store with corona virus. He's certain that he won't be going out there again any time soon!
This proof of course looks pretty suspicious. How could one *prove* that two people have corona virus merely by observing their coughs as Moore did?
Some philosophers maintain that Moore's proof is a genuine proof. His observations did give him reason to believe his conclusion. How things seemed to him at the time was enough. The problem is that it's just not very effective against the naysayers. The naysayers who doubt his conclusion aren't going to be impressed by Moore's observations.
Some other philosophers think that, in some contexts as least, Moore's proof is pretty good. In others, it's pretty bad. Moore's observations of coughing do warrant his conclusion, given our more everyday criteria. However, in a medical context where the criteria are more stringent, Moore's belief would have been unjustified. He would need medical tests or expert advice.
Another group takes it that Moore's coughing-observations do make it reasonable for him to believe that there's some sick people around, but it doesn't support him believing that they have corona virus. To do that, he would need collateral information linking such coughs to corona virus symptoms, which would make his support depend on having some reason to believe his conclusion already!
Still others think Moore was right, and that his observations justify his conclusion. This is because cough-observations divide into two: those which go straight to the facts and those which are mere appearances of it. The former are manifestations of corona virus symptoms, the latter are botched observations or misleading signals. And so as long as they were genuine cases, he was in a position to know that those people had corona virus, right then and there.
The debate over Moore's corona proof rages on ✋🤚😷