[SkyMarshal]

I do this too. There’s something about reading things backwards that more actively engages and focuses my mind.

It’s partly because seeing the conclusions first triggers a “why”, that I then have to go back and discover in the previous explanations. Most research papers put the final conclusions in the abstract, but each subsequent section and paragraph also ends with intermediate conclusions. Read those first, then go backwards to find out why.

It’s also partly because it forces my mind to actively rearrange the knowledge coming into it, rather than having it all neatly pre-arranged by the author.

Maybe other things too, but for whatever reason it helps me be an active, rather than passive, reader.