What do people think is the single largest comparative advantage that blockchain has over legacy financial technology? 

My vote is a unified ledger. Huge friction in TradFi

Larger solution space (more things are possible on decentralized tech than on centralized tech, one is a superset of the other).

A doodler and computerer. I like permissive/permissionless open source, smart contracts, p2p systems, room-scale VR, and NixOS.

Currently: WhatsABI

I have an oldish post about it here: https://shazow.net/posts/decentralization/

Really interesting take - hadn’t thought about it like that before