If a time machine existed, I would visit this moment again.....
Not one, but several moments between my husband and I come to mind.
I would revisit the last time I was with my parents while both were alive. So may things you take for granted and so many things you miss when they are gone.
I would love to re-live the last day(s) I had with my dog . Christmas Eve 2015.
I'd visit past to invest in something epic like apple or ... and then have a huge amount of money to make life that much easier
I would only visit the future. I would visit only a period in time long past my life expectancy in order to avoid a paradox. Visiting the past can change the way things turn out, altering history in ways that changes the lives of others, perhaps in negative ways that I don't want to be responsible for.