If Time Travel existed is it wrong to do?

Are you talking about a movie?

Do you have a time machines? Is human kind in danger?

If your answer to the last 2 is yes then i have to say that you have to be careful in how you use it. you don't want to hurt people. But other than that i don't see anything wrong with having fun time traveling.

Hope i helped.

To me it is still a fantasy, a myth for the simple reason that no machine or human or physical item can be made to travel at the speed of light.

Most things, humans, etc of the past have been destroyed or buried and the future is not yet 'created'. So logically, how is it possible for any living being to go into a 'living past' or 'living future' to observe and experience 'things' that are not even there?

And even if time travel should one day, several millenia from now, become possible, not many would desire this form of hazardous/suicidal travel which can become unethical and create disorder of one form or another. Just an opinion, just to be real.

By the time we have the technology to actually build a time machine, we will also have a better understanding of how time works. So the answer to your question will depend on that.

According to some theories, like the quantum many-worlds theory, time is always branching off at every instant into new possibilities. E.g. in one timeline you have oatmeal for breakfast before work, in another you skip breakfast. Or, two timelines may be identical except that in one, an electron somewhere in the universe goes in one direction while in the other it goes another way.

So if this is the correct model, we have a solution for the grandfather paradox (going back in time and killing your grandfather before your father was conceived, thus negating your own existence). At the moment you appear back in time, that timeline splits off from your own original timeline. So if you kill your grandfather, you will no longer exist in the future of that timeline. But since it branched off from your origial history, you yourself continue to exist since in your own past, you did not kill your own grandfather. Sorry if that's confusing.

Of course even if we don't have to worry about destroying timelines or creating time loops or paradoxes, there are still unethical uses for a time machine just as with any significant technology. That in itself, however, does not constitute a blanket ban on the use of time machines, just as the possibility of committing murder does not mean that all uses of a gun are automatically bad.

Time Travel is a paradoxical concept. But if it were real, somehow, it would be the most powerful tool ever invented. You could kill Adolf Hitler and Jesus Christ. You could make your genes the most dominate genes. You could steal inventions from the future and speed up our technological evolution. You could...well, the possibilities are endless and unethical. The problem with having the most powerful tool is that it would give the own absolute power. Absolute power corrupts absolutely.

if time travel existed and someone went back in time would it change anything? or could be the thing that made now?

my answer: no.

if it was altered then it was made to the time we know now. pretty much same thing could be said for alternate circumstances. From there you could also go into arguments separate dimensions deriving from those changes or what could have happened if nothing was changed either way we wouldnt know the difference unless we were the ones that time traveled.

We wont know unless we try. Modern physics is based on a huge amount of assumptions made out of convenience and go unchallenged for the most part, because very few people understand string theory or black hole physics. Time travel does carry a paradox like everything in existence does. Everything is a contradiction. I like the paradox argument because it makes sense like every other concept in existence. Concepts are a cross section of any given paradox giving you only one side of the argument.

Yes it is wrong,because past is gone already there is no way we can improve it, present we will wasteing when go back to past for example, future if we can go to what is life then??? why we living today, future prediction business will be shut thats for sure because everyone want to know about it

Yes, it is.

Even one occasion of using it may put the whole existence of humankind into hazardous circumstances!

People are good at destroying and so slow at creating.

if you go back in time you could do something to change history it like picking up a quarter in stead of some other guy and that guy ended up doing something different in a major way like going up on a roof and start sniping at people .