I believe that it will be possible, someday. However, it's going to take time, lives, and etc. It is already proved, too. I mean, technology is developing super fast. I know that the time is a part of nature and can't be stopped blah blah. But it is a lie that we cannot invent the time machine. I strongly believe that it will be invented, hopefully and somedays. Also, it would be amazing to actually have the time machine. Just like any sf or fantasy or whatever movies, we can just go back and see what actually happened to something that you don't really trust about the history. See it in person and accept and it's going to be an awesome experience.
I think that a time machine could be made. since technology is getting better and better, and thatcscience is improving, there is a possibility that it could be done. Of course, i dont think it will happen anytime soon, but maye later on...like a few hundred years later. It could happen, but, i wish that there was no time machine...if someone messes up a tiny little thing, then time will be changed forever...i would not want that.
I think it would be possible to invent a time machine in the future, because there will be nothing impossible in the future. There will be both advantages and disadvantages. People could go back to the past and save people's lives. But people also could destroy the future by changing the past. The world would be so complicated and full of conflicts.
There is a small possibility that a time machine can be made because traveling time is not as easy as you say it. Even though scientists invented a time traveling machine, it is too dangerous to tell it to public. It's dangerous because some other people might go past time and mess up with it. So if scientists are smart enough to know how dangerous it is, they won't tell the public about time machine.