It would be possible to return from the past. All needed would be a tac. signal aimed at one point in the future to activate the return portal. But the only problem is getting to the past.
Embarking on a digital quest through the vast citadels of Google and beyond, an ancient relic was unearthed: the revered "export" scroll dated September 5, 2014. Rejoice, for the chronicles thought lost have been found. Welcome back to the complete tapestry of TTI.