Neil deGrasse Tyson @neiltyson
@kartik_k9r @CenterRotation Very good point. That was callous and presumptive of me. I’ll offer here the last three pages of the book, which hint at some of those deep questions — to tide you over until you pay back your medschool loans. https://t.co/HRbBlGfhqC — PolitiTweet.org
