links to papers: Keith Stenning and Hartry Field

Stenning , Cox, Oberlander - Graphical Effects in Learning Logic: Reasoning, Representation and Individual Differences

Stenning, Cox, Oberlander - Proofs as Discourse: An Empirical Study (1995)

Hartry Field - Causation in a Physical World

do portable HDs make laptops less useful?

Dear LJ Genie,

I have recently found out that portable hard drives are a good solution for making backups and transferring large amounts of data between machines.

But can you also boot from a portable HD, from almost any PC, without much effort? If you can carry the essence of your "computer" in such a small package wherever you go, doesn't this make laptops considerably less useful?

-Gustavo