Stephen Sinnick

I have not read this book for years. I have to admit I am a big fan of early science fiction and read avidly. For me it all stopped when the powers decided that sci fi had to be more realistic. For some reason we had to largely drop the fiction. I strongly suspect it has something to do with the fact that the older sci fi was very socialist, hence had to be stopped. However this is one of my favorite Assimov stories. I do not presently own it but intend to put that right.