Don't let the sweatshirts and flip-flops fool you: The tech world is all about image. And there's no better place to see this than the tech-company press conference -- in which execs show off new products with elaborate PowerPoint presentations.
The most recent example: Wednesday's awkward Facebook event, hosted by CEO Mark Zuckerberg.
Here's a smattering of comments about Zuckerberg's presentation, in which he announced a new video-conferencing feature
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