so I can be confident in my abilities at an advanced age, over confidence is what a few here are displaying by thinking their skills will make up for a lack of conditioning
Ah, advanced age, now that will come back and bite you on the bum, however fit you may be now there is much that can and will go wrong and you will not be as fit as you think you will be, in fact the fitness you are doing now may well contribute to your future unfitness.
I suppose it hasn't occurred to you that many on here have actually got the experience of knowing their skills make up for what you say is their 'lack of conditioning'? Do you think we speak hypothetically? If so, you would be very wrong.