Stephen Hawking pays a visit to 'Big Bang Theory'

But I'm an optimist,” says Stephen Hawking in the exclusive clip above from new documentary Surviving Progress . The theoretical physicist's balanced perspective is a philosophical template for directors Mathieu Roy and Harold Crooks' meditative movie,

Using historic examples and arguments from Wright, Jane Goodall, Margaret Atwood and Stephen Hawking, directors Mathieu Roy and Harold Crooks claim that we are growing faster than the Earth — and our collective humanity — can handle.

The Big Bang Theory fans are in for a treat because the TV show's latest super geeky guest star is none other than Stephen Hawking.

By Amanda Crum · 8 mins ago · Leave a Comment Stephen Hawking is a brilliant man, a theoretical physicist who is well-respected in the scientific community and who has written numerous books about the universe and man's part in it. So when he talks,

Anticipation has been building in all of geekdom since The Big Bang Theory producers announced in March that nerd icon Stephen Hawking would make a cameo.