https://oaksnow.com/retrodither/
There’s also a chapter in my new book explaining how to write the same program in Python including Atkinson dithering, the MacPaint file format and MacBinary. You can get the code for free and do the conversions yourself without Retro Dither here:
https://github.com/davecom/ComputerScienceFromScratch
The book is here:
I bought INTC to hold for 10-20 years based on the promise of long term investment in domestic manufacturing. I didn't care if they took a decade to battle back. Seeing them sell of the foundry business would be enough for me to cut my losses before the titanic hits the ocean floor. They'd be a walking corpse at that point IMO.