sari

Rather than storing a memorized secret like a password, users can apply public key cryptography to sign up, access sites, and take sensitive actions by using private keys to deterministically prove ownership of a represented account on a shared ledger. It may sound like voodoo to the average person, but it is a bit like electricity. Flip a switch,... See more

MOOCs have a median completion rate of just 12.6%. Even adding a paywall, does not solve the problem. Research shows that less than half of students, who pay for MOOCs, finish them.