ひとにぎりの未来 (A tiny piece of the future) had some good short stories, but also some boring ones. It is also interesting to see his vision of the future, with machines that would look retro nowadays 
So yeah, it's almost a future that never happened but it's already "past"...
Shin'ichi Hoshi wrote hundreds of short stories, so I plan to read more books. Unfortunately, not so many publications of his publications have been translated to English. If you are curious, you can take a look here: http://shinichihoshi.com/. There are also some animated short movies produced by the NHK. 
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