Some background: the author (John Hempton) is a smallish long-short hedgefund investor. His main expertise is accountancy and analysing companies' cashflows -

Some background: the author (John Hempton) is a smallish long-short hedgefund investor. His main expertise is accountancy and analysing companies' cashflows - he occasionally contracts experts to advise him on tech or local issues. I found this article interesting as it shows the value/importance of technology & physics as seen from 'the other side' (i.e. from the point of view of investors).