PaulStretch or Paul's Extreme Sound Stretch

So, I hope I'm doing this right. I searched for PaulStretch and variations of Paul's Extreme Sound Stretch in titles and posts, but I couldn't find anything except one random comment on it

This Biebs song cuts off abruptly, but it's pretty compelling, soundscape-y stuff

https://www.youtube.com/watch?v=QspuCt1FM9M

A cooler example is Radiohead's Pyramid Song, though it is 38 minutes long and I wish it didn't have vocals. The vocals ruin the vibe. I know someone re-built the song without vocals on YouTube, so, heck, I might do it myself. The part before the drums kick in is pretty cool (around the 15 to 20-minute mark). the drums come in around the 32-minute mark

https://www.youtube.com/watch?v=XiKWfcy-Z70

When it's slowed down so much, you can really hear the overtones, which makes it really good for this kind of ambient stuff

This is an interesting interview with the creator of the tool:

https://web.archive.org/web/20120217161857/http://www.microscopics.co.uk/blog/2010/paulstretch-an-interview-with-paul-nasca/

And the tool itself:

http://hypermammut.sourceforge.net/paulstretch/

It's doing more than just stretching audio, so it ends up sounding really nice, I think

Paulstretch was used on this and other Saint Paul tracks: https://soundcloud.app.goo.gl/MeMhzDaCKM5rUA6K8

Excellent timing, a new version just dropped that works on current Macs

https://sonosaurus.com/paulxstretch/