I remember reading that one and the hilarious part is, it is not how it is supposed to start off.
He seems at first disappointed other sites have attempted to answer the original question, so in his own wonderful style he tries to solve the other weird engineering aspects of it.
He seems cut from some of the same cloth as Douglas Adams but with advanced math knowledge.
Gems like
Unfortunately, the laser energy flow would turn the atmosphere to plasma, instantly igniting the Earth’s surface and killing us all.
and another article
It's a shame humans wouldn't live this long, because at this point, something really neat would happen.