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This is Twenty Milliseconds, a site documenting what works and what doesn't in virtual reality design.

Contact Me

Kevin Burke is a usability researcher based in San Francisco, CA. He previously worked at Twilio, and writes more general content on his personal website.

You can reach Kevin by email at, or by snail mail at:

Kevin Burke
Twenty Milliseconds
2831 Laguna St.
San Francisco, CA 94123

You can reach Twenty Milliseconds by phone at +1 925.392.0364.