Great article
@Paul Jeffrey and an interesting topic to discuss.
Ive sim raced for close to 19yrs, but @55 I wanted to experience something real, something that was tangible, so I purchased a 2nd hand Rotax Max Kart, along with all the associated safety gear, helmet, gloves, boots and a race suit, which we don't have to wear in sim-racing, with the exception of gloves & shoes for those that use them of course.
The thing I did notice was the weight of my helmet, 3kg, add this to the weight of your head 4.5 to 5kg, and there's a recipe for a strained neck right there, especially since a kart can develop up to 1.5G's through tight corners flat out. Something I had to consider as I have severe arthritis all through my neck, hence I use a helmet support to protect my neck, much like a H.A.N.S device.
On my first outing in my new toy, I wasn't fearful because I knew what it was all about due to my sim racing years, no butterflies no hesitation. After a few laps acclimatizing and learning the track, I started to push and with each lap push harder. But the harder I pushed the harder it became physically, after several laps my hands started to ache, you wouldn't believe how much effort it takes to keep this tiny race kart in a straight line, especially considering the track I was on is quite bumpy (Wanneroo Kart Track) this is an aspect of real racing that we don't have in many virtual tracks, let alone feel.
The other thing that got to me was heat, it wasn't a hot day, about 23C, but you are exerting yourself in ways you never do in a sim rig, so your body temp rises quickly due to all your muscles working against the G's, and there is little breeze getting in to cool you down due to all the race gear you need to wear. Hence after about 15-20 laps I was done, my hands were aching, my arms were pumped, my Gluteus Maximus was also aching as there is no padding in a kart seat, and I'm a skinny guy, no natural padding, lol. I realised that I wasn't as fit as I thought I was.
As far as my speed was concerned, I did okay for my 1st time out in my knew toy, the quick guys were lapping in 52-53 seconds, I was lapping in the 55-56 seconds, they even commented on my speed, which was great for my ego.
So to sum up my above experience in relation to this article, I think sim racing does prepare you mentally to a point, but the physical aspect is on another level. I can understand why physical fitness has become so important in the real world of racing, it takes a lot out of you very quickly, and this is magnified if you lack the fitness and the ambient temp is high.
Cheers.