There is a big difference in computational requirements between simulating a system and constructing&#x2F;analyzing a model of a system from measurements, doubly so if the system being modeled is live. To put it another way, you typically can&#x27;t use virtual world platform computer science to build a <i>mirror world</i> platform that captures complex dynamics happening in reality. Very different problems.<p>For financial markets, modeling and analyzing systems as they are measured is far more useful (and what is done in practice), so spatial simulation platforms are not that interesting.