I never said I was never challenged and given a run for my money. I said I don't have a limit. Many underestimate the power of a human's willpower. Even exhaustion can be overcome with determination.

I have been in a situation like yours, though. As an infant, I had a "fight" with one of my brother's friends (mind you, he was eight years older than me) and after about ten minutes, I was exhausted. But I never sat down until my brother told me to. I never went down no matter how exhausted I became.

Unless I am soundly defeated by circumstance -- for example, losing a debate due to irrefutable fact -- I can't be defeated. If there is no set boundary for victory/defeat, then I have no limit. Most don't. But many who begin an exercise program, for example, quit at the first sign of pain even though they can continue. Limits are for computers.

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