2
L3s exist only to take value away from Ethereum & onto the L2s they're built on.
10mo • emiliob.eth •

For full context, here's a 2022 Vitalik's post on L3s: https://news.kiwistand.com/stories?index=0x660b951390de05d272201969740be5e306c78b46fd6e17ebbcb1bb3ad36adc4405a526b0
yeah read that one too, which puts Marc's concerns to bed for the most part.