I'm not a competitor yet my entire riding life I've enjoyed using computers and heart rate monitors and diligently logging the info. With each passing year it gets easier to do.
Now I don't care. I just ride. I have no idea how many miles I've ridden the past couple years or how fast. And after using a heart rate monitor for long enough, you eventually just know your exertion level.
Has anybody else lost that "need to know"? Maybe some of you never had it.