Remember when auto-tuning stuff was a thing for a hot second towards the tail end of the '00s/beginning of the '10s? Well, one of those made it to my PpG playlist.
So, obviously, it's related to the Professor. I don't really have a scenario in my head for this one, it just reminds me of him and his relationship with the Girls. Thematically it hovers around the same ground
Paternus does, but is more specifically related to how the Prof would cope with the Girls growing up ("the edge" in this case being their adulthood).
There's just something so sweet about this song. When I listen to it, I can picture the Professor helping the Girls out with their homework, trying to instill in them the same love for science that he has (and only really succeeding with Blossom, of course), and for awhile it's great because they're children and they're young and he's their dad. But, naturally, as they grow older and start growing more into their individual selves, they start pulling away from him, and he can kind of fight it if he wants to but that can't do much, and eventually he realizes that all he can do is sit back and watch. And that's in addition to all the crimefighting and world-saving - another form of them leaving him. (So much for me not having a scenario in my head for this one. I guess it was in there, I just hadn't put it to paper.)
That's the other thing about space, in fact - it makes you feel so small. The universe is so incredibly vast. As a parent, wouldn't sending your children off into the world make you feel small, too?