> Aren't e10s and Electrolysis two different names for the same thing?

Yes. e10s is short for E-lectrolysi-s. :)

I spent years before understanding how shorthands like e10s or i18n (InternationalizatioN) worked, and it was only when I heard about Andreessen Horowitz (a16z) that I understood …

Woops! I meant Quantum.

Fortunately no one has tried to use the name "q5m" for Quantum yet. :)