Quantum RAM is known to be the holy-grail of NISQ era quantum computers. Almost all machine learning speedups are predicated on having an existing qRAM. It seems whoever would be the first one to have a working patent is likely to be a billionaire. I am wondering if some highly lucrative companies like Google X could be building such a chip. People always fabricate FGPA's, why is it hard to do a qRAM as an FGPA.