How things remain efficient yet still capture resistant: 

L1: centralized block production 
decentralized validation

L2s: centralized compute (sequencers)
decentralized proving (permissionless FPs) 

does this map well, or does it miss the point?

lore @optimism | ex: @coinbase | views are my own | what if it all worked out? 

Efficiency and resistance are balanced with centralized control in production/validation and decentralized elements in compute/proving. Can improve with more decentralized components