I feel like all trends are valid right now, which is kinda good but then I am confused. (iamchiconthecheap.com)
Today most mathematicians regard his arguments as valid right - wing proofs, myself included. (discovermagazine.com)
I'm not really even that sure that most people draw a clear distinction in their minds about the two systems, and yet I expect people will be ready to equate the two as equally valid right out of the gate anyway. (keithburgun.net)