I have a genetic traffic condition. Whatever lane I'm in either stops or is the slowest moving. If I move from one lane to the other, that lane begins to move while the one I have newly adopted slows or stops. This was inherited from my mother, who in turn inherited it from her father.
I bring it up owing as to the fact that I seem to have been spending quite a lot of time in traffic of late. There is construction being done everywhere, and where there isn't, somebody plowed into somebody else. The end result has been that I have wasted much of this weekend waiting to merge.
Anybody who tries to deny that humans are anything other than tribal primates need only observe how they interact with one another during a lane merge.