1. This isn't a single corp, it is multiple corps. For a sense of scale, MSFT alone spent ~$55B in Capex last year. Check out this[1] for a sense of how much different industries spend each year. Note that this will cross several industries including Power, Telecom, Software, electrical equip, etc.

2. There is no commitment to spend in a single year

3. There is no actual contractual commit here, this is a press release (i.e. Marketing)

4. There is not actually a $500B pile of gold being spent. This is more of a "this is how big we think this industry will be and how much we may spend to get exposure to that industry"

[1] https://pages.stern.nyu.edu/~adamodar/New_Home_Page/datafile...