My attitude has kept me and everyone around me safe and sound for many years. I view speed limit signs as a guide to what is generally considered to be a maximum safe speed, but nothing more. If you've any experience driving then you'll understand that many speed limits are now set not on technical grounds, but on political grounds. A road near me, the A6144 (formerly A6144(M)) is a case in point.
You're quite big on grandiose claims based on zero evidence aren't you? This reminds me of my little brother who keeps sending me 9/11 conspiracy videos. I blame the X Factor, the process of cheap tawdry dumbing down of the population.
Politicians don't set speed limits, that's paranoid ramblings. People with a lot more experience of road safety than your or me set speed limits, or, as in the London example, the residents themselves clamour for speed reductions so that twatty little boy racers no longer use public roads as their own personal racetrack.
If you're one of those people who believe that speed is the most important factor in the determination of safe driving, then I can only say you're ignorant. And I don't mean that to be an insult. Do yourself a favour, go and read Roadcraft. There are many, many aspects to safe driving, and speed is one of the least significant.
You disagree with the BMJ research set out upthread? On what grounds please? Their research confirmed the findings of TRL421, which you've ignored (whoever said you'd make a good politician was on the money!). Increased speeds mean more accidents and more severe injuries. That's a fact, and to pre-empt your triumphant presentation of accident rates on motorways, that's a load of old trousers, there are no cyclists on motorways, no corner shops, schools, zebra crossings, pedestrians or pubs.
Up and down the country people are fed up to the back teeth with people who delude themselves that bombing along public roads above the speed limit is safe driving. Even if you are lucky enough not to smash into someone and tear a family apart you are still being anti-social, aggressive, bullying and intimidatory, there doesn't have to be an accident for speeding to have a negative impact on the people unlucky enough to live on the roads you use to break the law on. Claiming to be a good driver whilst boasting of speeding is just breathtaking chutzpah, it's like claiming to be a good father because you only punch your children in the face on Sundays, get a grip man, wake up to what you're doing, just get out of bed earlier or set off a few minutes earlier. Swallow as much of the Safespeed bum gravy as you like, just don't you dare carry over their inane ramblings into real life and onto roads you share with me.