IMHO, you should look at this video, where water droplet at macro scale «exists in two places at once» (demonstrates self interference when passing two slits).

IMHO, you should look at this video, where water droplet at macro scale «exists in two places at once» (demonstrates self interference when passing two slits). https://www.youtube.com/watch?v=nsaUX48t0w8 https://www.youtube.com/watch?v=nsaUX48t0w8