Computers think way faster than us.And Colossus and Guardian rise from the ashes and saves the Earth.
BTW the machines absolutely didn't need farms of humans for power or whatever. They just didn't need that and that's my opinion..
Unless the machines are handicapping themselves inside the Matrix to keep the framework in place, we don't stand a chance.
Although if Humans were genetically engineered to have the metabolism of a humming birds, or faster... We would think faster and produce more electricity, but it would greatly reduce our life spans.