America is a living idea. It isn't only the tenets of its founding, but also the terms of its future. Every day, we make America. Seeking to preserve and enshrine one vision of this country from one period of its past robs it of what makes it magical: its infinite possibility for adjustment.

In the same way that Occupy Wall Street forever elevated that concept of income inequality, the Black Lives Matter protesters have elevated the idea of inequity in policing as it relates to minority communities.

The Obama years will be remembered as a cultural - and legal - tipping point for equality for all people who do not identify as strictly heterosexual, arguably the civil rights movement of our times. The president signed the bill repealing 'don't ask, don't tell.' The Defense of Marriage Act was struck down by the Supreme Court.

One thing the gay rights movement taught the world is the importance of being visible.