I think this is worth thinking about. One important caveat is that humans have a bunch of built-in tells; we radiate our emotions, probably in part so that we can be identified as trustworthy. Another important caveat is that sociopaths do pretty well in groups of humans, so deception isn’t all that hard. One thing tribal societies had was word of mouth; gossip is extremely important for identifying those who are trustworthy.
I think this is worth thinking about. One important caveat is that humans have a bunch of built-in tells; we radiate our emotions, probably in part so that we can be identified as trustworthy. Another important caveat is that sociopaths do pretty well in groups of humans, so deception isn’t all that hard. One thing tribal societies had was word of mouth; gossip is extremely important for identifying those who are trustworthy.