I think that time travel is possible, but I would not want to time travel. Since technology is improving fast, time travelling will be no trouble at all in the future. Not anytime soon, but lattteeerrr in the future.
However, in my opinion, I think people should decide carefully first if they really want a time machine. Who knows what could happen? There are a lot of consequences if something bad happens, which could happen big chance.
I think the time travel is impossible. I have heard that scientists had way to invent that machine or even technology is developing super fast, I still think it is impossible.If this machine can be invented with good purposes and can make the world become better. But, if one evil guy gain it, it can change every thing that we will never fix it. However, I don't want it can be invented.
I actully think time travel will be possible soon since we are in 21st century and all out technology is way more developed then past over about 100 or less years we have invented many things and now days more and more people are born with intelegent skills and knowledge that shows a bright future. Maybe it might take 100 more years but I'm pretty sure in 100 years that time travelling will succeed.
I think time traveling is a really hard thing to do. The fact that people ride a machine and travels time is something that can happen only in a fictional stories. Even though it is possible, I don't think the scientists would tell it to the public about it because it's too dangerous. For example in the story 'The Sound of Thunder', a little mistake of Eckels change the whole world. So, I think that time traveling is not only impossible, but also very dangerous.
I believe that it would be possible to invent a time machine, since technology is developing faster as time goes, so there will be nothing impossible in the future. However, even if scientist invent a time machine, I think the government will not allow them to show to the people because it will cause a lot of conflicts and disadvantages. Even in the story that we read, because the main character killed a butterfly, the future totally changed.