May be. We have not seen future. But that is not the point and a person who is claiming there is "zero evidence" is mistaking absence of evidence to evidence of

May be. We have not seen future. But that is not the point and a person who is claiming there is "zero evidence" is mistaking absence of evidence to evidence of absence. Arsetechnica has published several articles on this topic in past and are available to read on Wikiepedia page for the OS. General information suggests this is one of those long term things if successful would be massively game changing.