Wow, progress! Congrats! I’m so happy!!
Also, I visited this site yesterday, because I had to set Japanese keyboard on my friend’s Android tablet. But I didn’t notice the code on the screen…
I have a slight idea: Maybe “physical descendence” means conversing the uppercase letters into lowercase? Including the + and ~? (Until you said that these are Shift + something letters, I didn’t even know that they are, bc I have a non-English keyboard layout.)
which looks even more like a base64 code (I mean the first three ones), but sadly gives nothing good-looking…