I blame cycle computers.
Back in the 70s and 80s, I had a cable-driven Huret speedometer on my handlebar. It was an analogue device with a flicky needle that told me little of any value.
Nonetheless, I used it as absolute proof of (for example) 40 mph in Richmond Park. I believe I was nowhere near that figure. No data storage though... so I could ignore it when I wanted to.
Now, however.... even my cheapo Cateye Strada Cadence tells me all sorts of gubbins I used not to care about. Now I care about it way too much.
Sometimes (this is particular to the model I have) it chides me with comparisons to speeds or times I managed on some earlier ride. It does so in a strange amalgam of Hollywood Russian accents and I'm sure I hear it inhale from a cigarette in an ebony holder as it speaks....
Pity, then, the owners of these absurd multi-media, GPS-turbine-powered, blood-dope-monitoring Garmin-Strava-Omnicyclitude devices that they clip onto their handlebar, bicep, wheel and aero-hat. These poor saps are the perpetual slaves of a device whose every admonishment they fear but whose data-hungry antennae they dare not de-activate. The joy-leach computer is drinking every drop of pleasure from their very veins.
I imagine such machines having a slightly squeaky German accent, borrowed from the leather-coated but slightly effeminate Gestapo interrogator of Hollywood past. No smoker's inhaling rasp, but the occasional click from the heel of their riding boots.
Thanks for offering, but I do not need a doctor just now. I need to do something about my average on that last blast to the shops.
Carry on.