Oh man! Replacing email is my personal Holy Grail. The ongoing escalation between spammers and spam fighters is proof enough that it is a system that has lived

Oh man! Replacing email is my personal Holy Grail. The ongoing escalation between spammers and spam fighters is proof enough that it is a system that has lived beyond its time. I first became aware of PG when he was working on Bayesian spam-fighting techniques, circa 2002. Email already seemed absurd to me. I was thinking of writing my own email client, but I would have preferred to get on whatever email-killing bandwagon there might be on the horizon, so I sent him an email asking if he knew of such a successor. He wrote back and said no, he was not aware of such a thing. That we are still using SMTP in this day and age just boggles my mind.