How do you prove that Earth is older than 10,000 years?
22 November 2017 | 3:55 pm

Mesosaurus fossil. Probably dating back to the early Permian Period, roughly 300 million years ago. [Image source] Planet Earth formed around 4.5 billion years ago. The first primitive forms of life appeared about 4 billion years ago. Natural selection did the rest, giving rise to species increasingly better adapted to their environment. Evidence, as they say, is overwhelming. Or is it?

Away Note
12 November 2017 | 6:25 am

I am overseas the coming week, giving a seminar at Perimeter Institute on Tuesday, a colloq in Toronto on Wednesday, and on Thursday I am scheduled to “make sense of mind-blowing physics” with Natalie Wolchover in New York. The latter event, I am told, has a live webcast starting at 6:30 pm Eastern, so dial in if you fancy seeing my new haircut. (Short again.) Please be warned that things on

Naturalness is dead. Long live naturalness.
10 November 2017 | 5:16 pm

I was elated when I saw that Gian Francesco Giudice announced the “Dawn of the Post-Naturalness Era,” as the title of his recent paper promises. The craze in particle physics, I thought, might finally come to an end; data brought reason back to Earth after all. But disillusionment followed swiftly when I read the paper. Gian Francesco Giudice is a theoretical physicist at CERN. He is maybe


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