Title text:
Mantle plumes explain Hawaii, Yellowstone, Iceland, the East African Rift, the Adirondack uplift, the Permian extinction, the decline of Rome, the DB Cooper hijacking, and the balrog in Moria. Those little hills of sand in your yard are caused by antle plumes.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3141/
So the thing that gets weird is that the heavier the particle is the more likely it is to interact with the slits themselves on the way through, in which case the wavefunction will collapse and it will seem to go through only one slit. Also, as the other person stated, even a hydrogen atom is really 4 fundamental particles that can interact with eachother. I'm not totally sure if double slit has been demonstrated with atoms but I do know it's been done many times with electrons.
Edit: its actually totally possible to do it with much, much larger things. From wikipedia:
And here's the study that did it: https://doi.org/10.1038%2Fs41567-019-0663-9