Cool, I'll be putting big data ai machine learning data center in your back yard.

No one has ever built a full datacenter in someones backyard...

The referenced 169 MW location is literally across the street from a residential neighborhood, where the article indicates they measured temperature differences[0].

> This gap is significant because many facilities are sited adjacent to residential neighborhoods (Fig. 1), and their air-cooled condenser arrays discharge air at temperatures 8–14 °C above ambient—often exceeding 50 °C during Phoenix summers—with air velocities of 2–4 m/s [15,16], creating thermal plumes that are advected downwind over inhabited areas. For example, the Iron Mountain Data Center (Fig. 1(c)) has cooling equipment located less than 50 m from the nearest three-story apartment building.

[0] https://www.openstreetmap.org/#map=17/33.267398/-111.880313

I wonder why the local government allowed it to be built without a buffer zone.

Well historically it meant that's where poor black families lived, but since these days the lower end of the 1% have more in common with the poorest of the poor than the richest of the rich it's probably where mere millionaires live.

“I haven’t seen it therefore it has never happened anywhere to anyone.”

gives a whole new meaning to 'vertical integration'

will they give me free tokens