So I have a pretty general question that relates to aircraft and rockets. What are the prospects of seeing rocket engines become the standard for commercial aircraft? It might be a dumb question; I really don't know all that much about the topic. The reason I ask is however pretty obvious. Rocket powered aircraft are much faster and who doesn't like speed.

Also, are there any designs that would be economical? I understand rockets burn a tremendous amount of fuel and that is obviously a limiting factor.

Lastly, what are the safety concerns? Just because we can do something doesn't necessarily make it a good idea. We have seen the struggles Musk has had with his rockets.

We keep hearing about all these super trains that can get us from Chicago to NY in an hour but the whole idea of traveling on a track at those speeds does seem quite dangerous. However, up in the air where there is nothing to hit is a different story.

Thanks to anybody with helpful answers. All these technological advances are so interesting.