Yeah, this is one big thing that's pulling the delivery times closer vs historical timelines.

Governments essentially said "If you can demonstrate reasonable efficacy and safety, go ahead and start mass production. If your Phase III trials fail, we'll make you whole and dump the doses in a landfill."

Otherwise, you had to wait the entire Phase III duration before even starting production, whereas now you'll essentially have viable vaccine on Day 0 when the Phase III trail concludes.