A couple of weeks ago we had the
BICEP2 announcement, a new and exciting physics result that was perfectly timed with my parents visiting. As such I rather missed my chance to comment at the time, and with inflation being somewhat beyond my area of expertise I wasn't sure I really had much to say that was better than, for example,
Resonaances.
However, one thing that did strike me from that post was the following line:
Speaking about model building, Higgs inflation is ruled out, at least in the current version. A robust prediction of Higgs inflation is no tensor modes at an observable level. In other words, we have a new evidence for new physics beyond the Standard Model.
If I've learnt anything in my time as a postdoc, it's that whenever you make this kind of statement it's just a matter of time before someone argues that it's not true. In this case, it took
a week.