The Brain in a Vat Conundrum

I was reading an article about a philosophical conundrum – ‘The Brain in a Vat.’

It assumes that if one’s brain were actually detached from one’s body, fitted with electrodes and made to think that it were having real life experiences, the detached brain would not realise that it was not part of the real world. Taking this a step further, a single computer could simulate entire lives of millions of people, all of them oblivious that they are in a computer program.

But, if a single computer can manage this, is that not an answer to Isaiah’s statement that God comprehend the lives of everyone who had ever been or ever should be? What had seemed an impossible technological feat even thirty years ago is now doable to some extent by ourselves – not to mention God.