I have a middle-aged character who is stupidly messing around with some very dangerous quantumly-entangled unobtanium. He accidently creates a localised time reversal field. After the field collapses a few minutes later, a dust-covered traumatised young boy emerges from the rubble of the destroyed lab.
This is not the fountain of eternal youth that he discovered but rather a way to reverse time in a localised field. This means that any normal person wouldn’t be able to remember their lifetime’s worth of memories, only the ones from when they were that age at the end of the transition. SIDENOTE This character of mine, let’s call him Bob, has an artefact made of applied phlebotonum that can, purely by coincidence (largely by design), provide him with his ‘lost’ memories.
Once Bob gets over the initial shock of what felt like to him an instantaneous (and painful) transition, he discovers, with further experimentation with the Unobtanium, that he has found a way to manipulate time. Bob can't explain how exactly, just that it does! (although he would never admit to not knowing how it worked!) He can reverse, slow and speed up time within a localised field. He cannot travel back in time. He cannot travel forward in time. He would just grow younger/older in the time-field and when he emerged it would only be a short time later in real-time!
He has also found a way, to reverse and speed up time at different rates. So he can use the field to research something for a long time and come out and it’s only a few minutes later in real-time (and if necessary use a fast time reversal field to get his younger body back). Naturally Bob doesn’t have much use for the slow age reversal time field.
I’m assuming that the energy from the Unobtainum temporal ‘explosion’ would provide his body with the energy it required to survive a rapid transition from old/young man to young/old man. I can require Bob to eat a lot after such an event to make up for any lost nutrients etc. But what happens in the slower time fields…
Question. If Bob can survive an almost instantaneous time transition from a middle-aged man to a young toddler without any food or water, would he require such for a ‘slower’ speeded up rate of time? I.e. if he experiences several days/weeks/months/years inside the time field would food and water be needed?
Would it be that the almost instantaneous age reversal/progression could have slightly different biological requirements than the 'slower' time field speeds; what would explain this?
I need to figure out if I need to stockpile large amounts of food and water before Bob initiates the ‘slower’ time fields. Urgh, suddenly had an image of what happens after all that food and drink is um, eaten and drunk. If there is a way to limit the amount of literal S%*t that would pile up - That would be great!
Handwave away the energy requirements for all this. The Unobtanium provides all. I've used the science-based tag purely to limit scenarios to real-life possibilities and not rely on magic or pseudoscience, after all none of this is possible anyway. I'm working on the premise that oxygen can still make it through this temporal field. Light can too but it will be diminished. There are lots of related questions to the characteristics of speeded up/slowed down time, so for the time being I'm not too worried about all of that very important background stuff.
Bonus points for anyone who can answer whether any of Bob’s scars would be removed while in the reversal field? (I figure that any scars he had when he was a young boy would remain but any from his adventurous youth would be gone – but I could be wrong)