Fixed Time Trial Bikes

I set my first 50 mile PB in 1987, and didn't beat it until 2009, 22 years and about 5 stone later. In 2012 I got within 36s of my 10 mile PB set in 1991, close enough that I still fancy my chances of updating my all-time 10 time. I've set personal course records on the H10/10 in the past couple of years, on roads I've been racing on for well over 30 years.

i know this point has been raised before but does technological advances need to be factored into this somewhat?