I’ve heard of that research. Very cool. Some words definitely do have a shape don’t they. I like the explanation of the 1984 bit.
My medical friends had the understanding that differences between languages in structure and syntax, even like, differences in conjugation, were correlated to physical differences in neuroanatomy. I pictured such things honing out certain neural pathways, and theorizing how it could have the effect of making certain rhetoric or logic more or less natural to learners of one language over another, perhaps. Thinking it might also effect how one might think about and perceive numbers or music.