Have you ever wished to go back in time? Maybe you want to hug someone you’ve lost or ask them something important. Maybe you would like to reassure your younger self or snuggle your little child who is now grown. At times like this, you might wish for time travel.  I’ve traveled through time and space; it’s always been unexpected and it’s always been brief. But I’ve been there, in the past.  Once it happened when I was walking in Austin, Texas with my son and his family. It was short-sleeved weather in spring.  I pushed the stroller on a trail along Lady Bird Lake. It’s really part of a…