There's also an active debate about whether the LHB actually happened, which adds to the stakes a bit: http://www.pnas.org/content/113/39/10802 http://www.pnas.

There's also an active debate about whether the LHB actually happened, which adds to the stakes a bit: http://www.pnas.org/content/113/39/10802 http://www.pnas.org/content/113/39/10802