[dginev]

Got it. So even with hyphenation, the gaps are still bad enough that you'd consider the current ar5iv rendering bumpy and distracting?

I think I can see that, but it's almost there, which is why it feels like there has to be something I'm missing for it to justify "just right".

But yes, at the least you've convinced me we should have a separate theme that goes left-aligned, and possibly makes a number of other choices that maximize readability.

Since I'd still want the folks that want "as good as PDF", to feel justified for sticking around.

[aasasd]

I may have a better eye for it than most, all the way to having made my own browser extension to turn justification on paragraphs off. However, if I do turn on left-aligning on the linked example, I get plenty of very jagged right edges—which means that with justification all that uneven space gets shoved between words.