> What's next? Electricity?

That and water. Electricity: Google made a post about scaling k8s to 135.000 nodes yesterday, mentioning how each node has multiple GPUs taking up 2700 watts max.

Water, well this is a personal beef, but Microsoft built a datacenter which used potable / drinking water for backup cooling, using up millions of liters during a warm summer. They treat the water and dump it in the river again. This was in 2021, I can imagine it's only gotten worse again: https://www.aquatechtrade.com/news/industrial-water/microsof...