Comment by JProthero

Do you understand the purported result, and the verification? I don't, but I'm confident that Andrew Strominger wouldn't have agreed to put his name on this if he didn't think it was correct and interesting.

The human authors have positions at the Institute for Advanced Study (Einstein's old institution), Vanderbilt, Harvard (Strominger) and Cambridge in the UK.

If you have to gauge this by the reputation of the experts involved in it as I do, that seems like a good list to me.