User blog comment:The Time Lord/DOCTOR WHO S11E01 - The First Minute/@comment-27270572-20151024234037/@comment-15395126-20151025002447

After the Twelfth Doctor regenerates, he crashes into the forest described in the script. He emerges from the smoking TARDIS, and then he collapses. It's kinda like when the Tenth Doctor entered his post-regenerative coma. The Thirteenth Doctor's just took longer, possibly due to the absence of tea...