Yes, tales dealing with time travel almost inevitably are. Even Rip Van Winkle, in his 20 year nap- missed the War ( maybe not such a bad thing)- his wife had died, and other negative changes...
The lead character who in the book is nameless and always referred to as the Time Traveller- we never learn his name. There are two future races- the intellectual Eloi and the heavy=duty and...