In yesterday’s post, I recommended an article in the Polymathematics blog. That entire blog is well worth reading.
For example, consider a discussion of whether 0^0 should be 0 (because zero to any power is 1) or 1 (because anything to the zero power is 1). Or is it indeterminate? Or undefined?
And on the non-mathematical front, do read the long review of Ruth Reich’s Garlic and Sapphires.