This seems like something that should be true, but I think I remember seeing a Mythbusters episode where they decided it didn’t make a difference. That show was more about entertainment than science, so I wondered if there was a more rigorous study done? I’ve definitely seen splashes of water(?) come out from flushes so that alone seems to argue for closing lids.
Great video. Clearly, the only viable option is to never flush again. All of our work toilets lack lids, so we’re just gonna start stacking turds.
/s