Are you asking about what this would look like to observers on the side, or about the subjective experience of the person undergoing interference?
Regarding the first question, I don’t think it would be different in principle from any other hypothetical experiment with macroscopic quantum interference; how much different interpretations manage to account for those is a complex question, but I don’t think proponents of either of them would accept the mere fact of experimentally observed macroscopic interference as falsifying their favored interpretation. (Though arguably, collapse-based interpretations run into ever greater difficulties as the largest scales of detected quantum phenomena increase.)
As for the second one, I think answering that question would require more knowledge about the exact nature of human consciousness than we presently have. Scott Aaronson presents some interesting discussion along these lines in one of his lectures: http://www.scottaaronson.com/democritus/lec11.html
Are you asking about what this would look like to observers on the side, or about the subjective experience of the person undergoing interference?
Regarding the first question, I don’t think it would be different in principle from any other hypothetical experiment with macroscopic quantum interference; how much different interpretations manage to account for those is a complex question, but I don’t think proponents of either of them would accept the mere fact of experimentally observed macroscopic interference as falsifying their favored interpretation. (Though arguably, collapse-based interpretations run into ever greater difficulties as the largest scales of detected quantum phenomena increase.)
As for the second one, I think answering that question would require more knowledge about the exact nature of human consciousness than we presently have. Scott Aaronson presents some interesting discussion along these lines in one of his lectures:
http://www.scottaaronson.com/democritus/lec11.html