Time Travel discussion

If you're a devotee of classic and even contemporary time travel stories, you've likely read a book or anthology edited by David Hartwell. He suffered a massive brain hemorrhage yesterday, and is not expected to recover. He was my editor at Tor for many years -indeed, the last book he edited for me was The Plot to Save Socrates - here's my blog post about him http://paullevinson.blogspot.com/2016...