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by phaemon 4611 days ago
> pdfTex will take TeX input and output PDF

Ok, well, maybe I don't understand TeX at all, because I thought that's exactly what it did.

EDIT: Ahh, wait, I have it! When they say "extension" they mean "implementation"! They actually replace TeX as an engine. Is that right? So, luaTex is just an implementation of TeX written in Lua?