There's something very familiar about all this.
As of 7.28pm PDT today, the entirety of the Back to the Future series will take place in the past.
Back, forward, past, present, future...now seems as good a time as any to drift into reveries of my own timeline and personal relationship with those films in a piece I wrote a couple of years back: My Density Has Brought Me To You.
I'll leave the last word to the indefatigable Dr. Emmett Brown...