For people who can't see this due to hug-of-death problems, it appears to be an art project in Japan where all current site visitors control real mouse pointers made of light, projected into a physical space, with streaming video. That is, you move your mouse pointer around over the video, and instead of rendering it on your screen, it gets rendered physically, with light, in a specific room in Japan. You and all other visitors (and presumably also people in Japan who are in that room) can see your own mouse pointer and everyone else's.

If you click, a persistent copy of your mouse pointer is left behind at the specific location you clicked on, for a little while.

There are various objects in the room and so you can play around with illuminating them by moving your mouse pointer over them, or drawing text or images with light.

It was pretty awesome before it got overloaded!

(You should probably visit it with a device with a mouse rather than a touchscreen.)

Hugged to death? Getting connection errors in Firefox console.

Infuriating that they decide I shouldn't be allowed to view the page on my phone, even when I switch to desktop view. My power's out and I'm not going to hunt down and tether a laptop. Guess I don't care about whatever this user-hostile site is.

Web devs: don't do this.

I'm assuming I'm controlling the cursor projected somewhere in Kunitachi Japan? Pretty cool

Any context about this camera?

Doesnt work with Firefox:

    Uncaught TypeError: pointerContainer is null

Ah, this uses that JPEG streaming trick. Cool!