Ubuntu apt-get can not remove package due to configuration script

I once installed a package (pypy) through apt-get but then recklessly decided to delete the pypy directory (/usr/lib/pypy). When I tried to next do the right thing (sudo apt-get remove pypy) I kept getting funny errors from dpkg. It turned out that there was a script (/var/lib/dpkg/info/pypy.prerm) that dpky was using that was confusing it.… Read More Ubuntu apt-get can not remove package due to configuration script

Gareth McCaughan’s summary of what we know about D-wave’s quantum computer

D-Wave is making waves (I know, I know) with its quantum computer. Scott Aaronson’s post about the latest on the D-wave saga was linked on Hacker News. Gareth McCaughan has given a very nice layperson summary of this post which is actually a very nice standalone read on D-wave and the essence of quantum computing.… Read More Gareth McCaughan’s summary of what we know about D-wave’s quantum computer