They are good stories that see a less favourable evolution of man. The biggest downside for me it's the writting that can be a bit difficult to accompany (with the understanding that english is not my first language) The Time Machine it's a classic, The Sleeper Awakes was intresting especially when the plot nowadays has been used in other media, it's funny to see the imagination of what the future could be, and The Chronic Aragonaut it would be intresting to see it develop but none the less it's a good short story.