According to Paul Graham, first I'm supposed to
install version 372 of mzscheme
So I went here: http://download.plt-scheme.org/mzscheme/mz-372-bin-i386-linux-ubuntu-sh.html
sh mz-372-bin-i386-linux-ubuntu.sh
But then when I download that shell script, and follow the instructions, I get the following error:
Checking the integrity of the binary archive... ok.
Unpacking into "/home/n/mz-tmp-install"... done.
mz-372-bin-i386-linux-ubuntu.sh: 478: mz-372-bin-i386-linux-ubuntu.sh:
mz-tmp-install/bin/mzscheme: not found
Error: installation failed
(Removing installation files in /home/n/mz-tmp-install)