He loved his blackboard dearly.
Not because it was practical,
it wasn't- it was dirtying
his hands and his clothes.
It was just a bit
of "normality" for him. He
was a crazy Time Lord
in a blue box, and
technology was all around him.
But this was so simple.
Just a board and chalk.
He liked it, and a
blackboard didn't ask questions. At
least not his blackboard. He
could think in peace with
this stile of writing. Blackboards
are cool, after all. But
there was still another reason:
He was simply looking brilliant
when writing on a blackboard!