While Microsoft has backed off some leases recently with its data center buildout, both Amazon (AMZN 2.01%) and Alphabet (GOOGL 2.79%) (GOOG 2.56%) look prepared to go full steam ahead.Microsoft still plans to spend around $80 billion on infrastructure capital expenditures (capex) for artificial intelligence (AI) this fiscal year, but its fiscal year ends in June, only a couple of months from now. However, it's pausing some early-stage projects, apparently because its needs and those of its AI partner OpenA ...