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Slightly disturbing that you don't get any confirmation to share on the mobile side, it just sends your data off to whoever it matched with immediately :-/

Generally very cool experience but I wonder how well the matching algorithm will scale though. You can't be getting all that many bits of uniqueness out of a single key press and a vague bit of browser location data right?

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I think it can scale by bumping more times (1-3 is ok for people and it will triple your space). But even with this, the non-geo-located (or poorly located) browser will become unusable by oh-so-many conflicts when you have certain amount of users using it.

If you think about it, it's a paradox. For this to be vaguely useful, lot of people must use it. When a lot of people start using it, the system breaks.

NFC to the rescue?

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