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Thought Email
List: unsolvable puzzle fun
To: confident naive puzzler
Subject: Re: reversing simple hashes
From: excited naive puzzler

> It gets more complex when you have millions of them rather than just
> one! I wouldn't put something that hard to rewind in the time travel
> thing.

Maybe we could drop the timetravel thing and try out a few more xors
piled on each other and see if we can reverse them!

It seems a little doable for me. I like doing this.

Say we had 3 xors!  This is maybe a binary or logic expression? That
can be solved for any of the parts in various ways? Sounds a little
interesting.