We had a huge discussion on this on the Oculus forums awhile back, and how to make it a reality, rather than fiction. Basically, it comes down to just a few points:
- Culturally acceptable level of intrusive technology, basically, it would need to be acceptable for this technology to be a household product for consumers. There are both medical and security concerns, and these concerns cannot be taken lightly.
- Processing speed: You basically need a quantum computer for processing, however, within the next 20-30 years, the Iphone 50 will have a quantum processor in it.
- It will not come from the gamer-space, but will come from the medical space.
- We have the tech to do this now (but it’s prohibitively expensive and is relegated to the research labs)