> Is there something qualitatively different about personal meetings, and if so, where is it? Is it eye contact? Body language? Over 50% of our communication i

> Is there something qualitatively different about personal meetings, and if so, where is it? Is it eye contact? Body language? Over 50% of our communication is nonverbal language. Body language largely, and no small part olfactory plus auditory (which video conferencing interferes or blocks). This is not an open question. > when humans have engaged in unarmed combat for millions of years and every major country has long lineages of specialized competitive martial arts Because combat wasn't formalized then funded to be inclusive and communicated to the world. This is not an open question. I'm sure there's more on this list, but maybe someone can update it.