This is a special post for quick takes by pnulty. Only they can create top-level comments. Comments here also appear on the Quick Takes page and All Posts page.
I'm new here so not sure if this is worthy of a full post, but I want to draw attention to this work: https://www.nature.com/articles/s41586-021-04223-6
I think that the potential to implement learning systems in media such as sound, water or light is underestimated as a potential step-change forward in AI technology. That's all!