I've been thinking about this for a while, and I might as well just say it out loud: we are not great at events.
Not "we" as in Optimizely specifically — although honestly, I'd include us in that conversation, and I'll get to that. I mean the marketing industry broadly. We built a format for a world that moved at the speed of an annual planning cycle, and then watched the world stop cooperating.
We lock the event calendar twelve months out, which works well enough until you account for the fact that our product ships every two weeks — and nobody says that out loud in the planning meeting, but everybody in the room knows it, and everybody has learned to quietly design around it.
You write the session abstract in February for a stage in October. Vague enough that it will still be true by then. That is hedging dressed up as planning — and I say that as someone who has done it, at more than one company, across fifteen years of marketing.
The gap has never been wider than it is right now. Not because events got worse. Because the distance between when you commit and when you show up got a lot harder to paper over.