The links to PBL's pieces at abnormaldistriubution point to nowhere - anybody got working links?
I think they've been quoted in someone's post above and that has mangled them. I think these are working links:
http://www.abnormaldistribution.org/...-ten-years-on/
http://www.abnormaldistribution.org/...ars-on-part-2/
If not, trying to put in text form so it doesn't get messed up, you want:
then either of:
2010/12/06/concorde-ten-years-on
2010/12/09/concorde-ten-years-on-part-2
Thanks to PBL for posting these, well written and well worth reading.