SSI proxies for legal (noun-like) identity, but the system property of friction is radically altered in the process. Historically, invoking legal identity is tiresome. It involves systemic friction and consequently it’s called upon only when really needed and ignored in all other contexts. How frequently and for what purposes have you needed to produce proof of legal identity so far this century?

But SSI demonstrates an unprecedented frictionless quality enabling the routine, programmatic proffering of or triangulating back to legal identity and other noun-like identities[28] and associated credentials on demand.