Satoshi talked about L2s many times for scaling.
Discussion
Can you show me where in the WP it says to keep blocks small & force L2 as scaling?
It's not in the white paper, just his other writings/conversations. Blocks will never grow as much as people think it's a solution it's not. Blockchains are not and never will be fit for scaling.
Didn’t SN also talk about how full nodes would only be run in data centers at some point?
No that's why blocks are small. Small blocks = decentralization (btc) large blocks = centralization (eth solona). Small blocks keep it decentralized because the chain stays small enough to download/fit on hard drives.
Eth and sol fail at decentralization because their chains are so large you do need server farms to store the chain. Hence they get chain splits and forks all the time.
Plenty in here to learn.
https://www.reddit.com/r/Bitcoin/comments/7pgrhb/hal_finney_understood_the_need_of_2nd_layer/
Im well aware of what Hal thought