See also Chapter 2.6 of Smashing Physics.
Claiming to understand the universe from first principles is all very well, but the foundations have to be built on experiment and observation. And it is slow, hard work. Even in Pisa.
Me near the actual tower from which Galileo dropped an apple, hitting Newton on the head and leading to the invention of both impact and gravity*
Continued at The Guardian.
About Jon Butterworth
UCL Physics prof, works on LHC, writes (books, Cosmic Shambles and elsewhere). Citizen of England, UK, Europe & Nowhere, apparently.