Impossible, inevitable and in between
Some actions in science fiction are much more difficult than others.
Degrees of difficulty
explanation
An audio culture
A video culture?
A small change
Starting from here
Multiple-choice History
Making it simple
Our tutor ponders the trade-off between accuracy and simplicity in teaching.
Back to sea
A different world
Our navigator points out how the world of the sailor has become entirely disconnected from that of the rest of us.
Back to C
The difference between languages
We are struck by the great range of things included in the term “software.”