If I had a responsible and reasonably educated person tell me that time travel was not only impossible but a waste of time to contemplate I would initially agree with them.
Upon further consideration I would vehemently disagree on the grounds that without a precise definition of the terms I would insist that the statement was quite invalid.
An individuals imagination is quite extensive and in no way limited to any given time or place, so we can use this description to permit theoretical visions of any circumstance.
Towards the end of the twentieth century the world wide web was nothing more than an imaginary computer fiction but as we now see, the development has turned out to be so all encompassing that most peoples lives are virtually dependant on it.
This novel assumes that we can extend the limitation restrictions currently accepted sufficiently to transmit thought between matching brains in a similar manner to downloading and transmitting a web page.
Initially developed as an assistance to the education system the function was expanded to enable our participants to manipulate knowledge between persons in different places and also different times.
Our hero is an average IT graduate with a good imagination, limited funds, and an enthusiastic interest in bedtime activities with his regular girlfriend.
This piece is quite imaginary and although it does take advantage of some known historical facts, it should not be considered a record of the events as they occurred.
That would be boring, if you want history look it up in the encyclopedia.