This question has been closed (by three users and a moderator) as 'too broad'. The reason given was this:
This question has been closed because it appears to be asking about a very conceptual technology that isn't implemented in common hardware, thus reliable recommendations can't be made. For more information on question quality, please see our guidelines. If you can rework your question to fit the site better, it can be reopened. Thanks!
Personally (not officially - this is opinion), I don't think this is right. I can't say I remember seeing any posts or definitions that mean conceptual technology is off-topic; moreover, the requirements defined in the question narrow down the potential results to very few products. In contrast to the reason given, I think conceptual technologies even in the early stages of development are still on-topic - the fact that there aren't many implementations shouldn't make them off-topic. It does mean that the question is unlikely to get many answers (or even any at all), but that's a product of the narrow scope and is the same for any other question. Additionally, our normal quality guidelines should cover answers well enough - if it's just a one-Google result without much effort, we can delete it.
Let's have a discussion - is this closure correct or not?