Gear ratios for no brakes riding...

Says the laws of physics. You may be a very skilled rider that rides brakeless, but you are 100% certain to be a better ride if you fit a brake. Being a better rider is not just about yourself, it's also about anticipation, braking/stopping distance, brake modulation.

If a little girl runs out between cars, you are more likely hit her if you have no brakes (given both the brakeless and non-brakeless riders are equally proficient), you are also more likely to hit her at a higher speed because you couldn't slow down fast enough. I can't believe you don't understand this.

^this