I didn't participate in last week's babble, and I also went from three stars to two stars - I think it might just be a miscount
Edit: Here's some buffer text, because the sidebar shows things even inside spoilers. Buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, buffer text, and more buffer text.
Time: 47 minutes
Notes:
A couple of times I found myself adding an 'honourable mentions' box, and then finding a way to include it in the main list ('Gift it to someone -> that's not exactly hiding it -> disguise it first' and 'Hide it underneath a bin liner -> bin liners weren't invented yet -> invent bin liners first'). I used some somewhat absurd solutions the previous two challenges, and inspired by the more down-to-earth answers of others so I tried to limit myself to the possible (nothing outside the technology range available to me, so no inventing AIs to do the job for me) although in the spirit of babble I generally tried to make every idea somewhat workable.
If I had to guess, the reasoning behind it is to nudge the game closer to a 'true' prisoner's dillemma (trying to work out if your opponent is willing to cooperate, rather taking focus away from it towards the shallower problem of trying to work out if your opponent is a copy of you)
Is the number of rounds per matchup going to be in the tens, or the thousands?
Edit: I just realised you specified in the post
And finally, the most impractial item on the list
50. SLS
I don't know if this is already known, but you might be interested in the fact that you can currently use start prompts for GPT-2.
Weird but self-consistent explanation: The Chamber of Secrets itself isn't a Parselmouth. It's not really using the Parseltounge API, it just uses the raw audio of the speaker.