Some kind of chip or retina scanner that lets you into wherever you want with no hassle. I have keys for home, keys for my car, keys for my parents, a keycard for work, a code for the gym, there's a lot of shit to carry round just so I can go into the places that I'm allowed to go into.
So how about, you go to the future, look up a museum of your time, then just go and be yourself, like the people who do similar in museums now of the past.
Either way though, unless time travel has become widespread in the future, you wouldn't be outed, people would just straight think you're a bit odd. There's people now who straight up claim to be time travellers and we're just like, OK mate, suuuure.
I think even then people are too skeptical. I could stand in Trafalgar square and start levitating and everyone will be like "Well done, clever trick!"
Water? What's that? [ADHDinos] (startrek.website)
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What kind of wearable device do you want? Assuming it will work and feel like you imagine it would
It’s getting cold and so I’m fumbling with my phone and other devices....
In which scenario would you last longer before being outed as a time traveller?
Being dropped 500 years ago into your ancestors’ community....