This is zcash testnet being mined, sped up 60x for dramatic effect.
Make it fullscreen, sit back, and imagine this being realtime and real net
You'd expect that looking at it for real would be like watching paint dry, but it is oddly mesmerizing.
With the equihash being so slow, you can see every hash produced by every node in the pool slowly coming in.
Tick, tick-tick, tick, the fans whirring.
Another observation that is made apparent in timelapse is how a new block derails the computation - each time one comes in, every node have to restart, and there is a 20-30 second pause with nothing happening.