Already starting off with a nod to Torchwood, referencing the famous 'everything changes' line that's often repeated which makes this more entertaining than the previous.

Generally I think the fact that this is being framed as Jack recording about ancient knowledge rather than about a recent event means it's fun, especially with there being a bit of newly created footage for this one mixed in with the footage from the episode. The image cards saying 'reconstruction' or 'Made using special photographic trickery!' are also just very tongue in cheek and I love them.