Do you think trips in time are scientifically possible?

[Celestia]

Why? For fear of creating a temporary paradox or changing some historical fact?

If someone goes back in time and changes any event no matter how insignificant it may seem it will alter the futures reality which will be crucial in some way. I'm a firm believer that everything happens for a reason and not to mess with the universe.

[Ruggery]

If someone goes back in time and changes any event no matter how insignificant it may seem it will alter the futures reality which will be crucial in some way. I'm a firm believer that everything happens for a reason and not to mess with the universe.

That depends on the magnitude of the event.
It is not the same for a person to go to the past and steal some unimportant object that a person travels to the past and kill a president.

[Westbrook]

No. It'll never be possible to go backwards in time, and going forward in time is only possible with light speed travel which will never be achieved.

[Ruggery]

If someone goes back in time and changes any event no matter how insignificant it may seem it will alter the futures reality which will be crucial in some way. I'm a firm believer that everything happens for a reason and not to mess with the universe.

The worst thing that can happen to you is that you or someone prevents your mother and your father from getting to know each other.

[Celestia]

That depends on the magnitude of the event.
It is not the same for a person to go to the past and steal some unimportant object that a person travels to the past and kill a president.

ah but it could be! You should read "A Sound of Thunder" by Ray Bradbury, it's literally just about that.

[Ruggery]

No. It'll never be possible to go backwards in time, and going forward in time is only possible with light speed travel which will never be achieved.

Never?
Do you see it impossible that in the future we can leave the solar system and visit other planets outside our system or galaxy?

[Ruggery]

ah but it could be! You should read "A Sound of Thunder" by Ray Bradbury, it's literally just about that.

I have never read it, about what it is about?

[Westbrook]

Not without exploiting a wormhole or something.

Never?
Do you see it impossible that in the future we can leave the solar system and visit other planets outside our system or galaxy?

[Ruggery]

Not without exploiting a wormhole or something.

You mean this?

I am not an expert in physics, but that seems more difficult and risky than the journey at the speed of light.

[Westbrook]

Traveling or propelling an object at or beyond the speed of light would require an infinite energy source, so using a wormhole or black hole is the only real alternative.

You mean this?
I am not an expert in physics, but that seems more difficult and risky than the journey at the speed of light.