What identities would connect people of the future?
Humans are social beings so it's likely that we'll reinvent communities as a way to be together. But how would we bond in the future? In the past, we bonded through family relations, physical location. Today, we bond through interests.
What about tomorrow? Perhaps if self-exploration trend continues more people would know themselves and then we'd bond based on values. Also, short term needs.
What is a tribe in the future?