But while Comcast's seat-warmers slept, a collection of Cambridge scholars, Internet advocates, industry leaders, engineers and policymakers nearly all agreed that Internet blocking has serious consequences for each and every one of us.

I say "nearly" because Comcast remains defiant; its executive vice president, David Cohen, continues to insist that "Comcast does not block any Web site, application or Web protocol including peer-to-peer services."

Cohen sets a high bar with that denial, especially since extensive testing has shown exactly the opposite to be true.

"There a single fact here that [Comcast] cannot deny," explained Columbia Law Professor Tim Wu during Monday's hearing. "Users of the Internet sought to use an application in a certain way, and they were blocked."

This view was supported by David Reed of MIT's Media Lab, who had also experimented with popular file-sharing applications and found that Comcast was duping users with forged network transmissions that cut off their connections. "Comcast's secretive attempt to apply non-standard management practices creates serious problems," he said before the FCC.