danneloid said:
Well im gonna be a partypooper and say that time dosnt exist, the difference between one second and a year is nothing compared to eternity. Time is something humans have invented to keep track of dates it isnt something fysical that we can manipulate in any way. But playing with thought i would go back in time to the middle ages and bring a lighter a gun and a flashlight to freak people out. (gun is to protect myself when they want to burn me for beeing a witch.

oh and btw you cant go back in time and fuck things up since u went back it has already happened and it was the point of your timeline.
Because dates are a completely fictional invention, and not a system to keep track of the cycles of the sun and the moon as well as the changing seasons.
And whether or not you can fuck up time, we don't know yet. Since there has never been any (recorded) time travellers, we don't know if time travel is impossible (due to time paradoxes) or if time fixes itself (either the timeline "has always been that way" or you just cause a new "branch" to happen where the new timeline works. Essentially travelling between dimensions rather than in time).
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Either way, I'd go towards the future. There are way too many things that can cause trouble for you in the past, even when ignoring paradoxes just by travelling.
Superstition, language barriers, diseases (I have no idea what the effect of diseases that are now dead would have on me, or modern diseases would have on people in the past), and so on.
As for what I'd bring, I'd try to bring as much of todays knowledge as possible. A laptop and just a fuckload of external harddrives crammed with just about everything humanity knows today.
If I end up 40 years in the future, the experiment is a huge success and I can report back to the scientist most likely.
If I end up 1000 years in the future. Well, either they have their own, perfected, time travel (hey, he could send me there from 1k years in the past. Which means time travel has had 1k years to develop) or I can do some good.
Post-apocalyptic, I could try to help rebuild society.
Otherwhise I could donate my bag to a museum. Imagine someone appearing from the past with just the content of the library of Alexandria today. Every archaeologist in the WORLD would line up just to see, not even read, the scrolls.