It’s like if you imported all modern technology into the past: an iPhone alone would standout in the 50s for example. You have the device in hand but no service (cellphone towers are non existent during that era, nor is the internet & social media) so its functions remain basic (note taking, photos, voice memos) while pretty much all apps won’t function (no phone calls either).
You could record what happened back then via video but you’ll be too late when the internet’s infrastructure comes into fruition, so that “1950s lifestyle video” becomes old fast by the time you returned to the present day, but would you be believed if you said “this is shot in 1956” despite the resolution being in 4K in color or consider it mere fiction even though it is not.
I feel like it depends a lot on what you want to get out of it, you seem to be coming at it from a very specific perspective, which isn’t necessarily the same way others might look at the opportunity. For me for example, I would want time travel so I could say some choice words to my parents and abduct my younger self :\
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