BarCamp was invented by hackers excluded from elite invite-only conferences.

Evidence

Technorati employees Tantek Çelik and Ryan King were driving back from an around-the-clock hacking session at the second SuperHappyDevHouse when the idea for BarCamp was born. Çelik was complaining about being excluded from the second Foo Camp, an invite-only hacker camp run by O’Reilly media. — Alice E. Marwick, Status Update, 160

Categorization

• SEED: Countercultural conferences routinely spawn egalitarian counterparts when would-be attendees are excluded from elite gates — a pattern observable from Foo/BarCamp to TEDx.
• corroborated: 2 independent passages support this claim — Alice E. Marwick, Status Update: Celebrity, Publicity,…, 160