Damnit, yes, thanks. I now feel a bit stupid. I dug through a mixed stack of Bradbury, Heinlein, and Niven earlier in the year, so who-wrote-what is a bit mixed

Damnit, yes, thanks. I now feel a bit stupid. I dug through a mixed stack of Bradbury, Heinlein, and Niven earlier in the year, so who-wrote-what is a bit mixed up in my brain.