You mean analog/digital, not passive/active. An op-amp is just as much an active component as a microcontroller.
A) Earnhardt is probably contractually obliged to participate (because they pay him to do so).
Actually, Earnhardt had been sim racing in the old Papyrus NASCAR sims, back before they went out of business and were reformed as iRacing. Earnhardt would probably be racing there regardless, he's just an enthusiastic spokesperson because he was interested in the sim and company already. When they invited him to alpha and beta test the software, it's because he knew a developer, loved their sims, and already had a home racing setup.
Dale Earnhardt Jr. competes in the NASCAR iRacing series (won by a Brit, Richard Towler) and several other NASCAR drivers use the service as well (AJ Allmendinger ran a race live on Speed, for example). Also, about half the IRL drivers use iRacing, as well as a smattering of other racers. It's just not rare enough to be interesting anymore, but if you want to find it, there's plenty of video online of pros running iRacing.
A car like this needs to be driven with confidence. For the wings to generate enough downforce to make the corner, you must be going fast. Some corners either need to be taken incredibly slow, or flat out in order to have enough grip. Heck, lifting off the throtle (especially in the first or last corners here) can send you into a spin as the car's weight transfers forward off the rear wheels. Without that confidence they either would have driven significantly off-pace or wrecked the car. That said, I agree that a test with a more beginner-friendly car might be reasonable. You could just look for Skip Barber racing school lap times for beginners, and check the time difference there (iRacing has the Skip Barber car, and all of the tracks they have a school at).
That said, the biggest difference between iRacing and other sims and games is that iRacing laser scans the tracks at 1mm resolution, so it has every bump and crack in the pavement, every tree as a reference point, and so on. Other sims get pretty close, but iRacing really does recreate every square centimetre of the track, not just something close based on GPS coordinates. It's good enough that many IRL drivers use it to learn and practice tracks, and Dale Earnhardt Jr. uses it to brush up on Infineon and Watkins Glen.
It has also been mentioned that a combination of jet-lag and possible food poisoning may have contributed as well.
I'm not sure what this online racing sim uses as their codebase. It wouldn't suprise me if they both use the same codebase.
IRacing is led by Dave Kaemmer of Papyrus fame, and iRacing uses the NASCAR Racing 2003 code base.
And if you're interested in how in-depth the sim is aiming to be, here's a fantastic video on the upcoming tire model that Dave is developing currently. Basically, he's not aware if anyone else has tried to model a tire the same way, using physical model predictions, rather than curve fits to test data.
passBall(player Passer, player Receiver)
{
if(Receiver.opposingPlayersBetweenSelfAndOpposingGoal.isLessThan(2)) {Receiver.isOffside = TRUE;}
else {Receiver.isOffside = FALSE;}
Passer.kickBallTo(Receiver);
if(Receiver.touchBallFirst == TRUE && Receiver.isOffside) {callPenalty(offside);}
else {return;}
}
one... does need faith to believe in God's compassion
Not if you've witnessed it. If God has shown himself to you, you need no more faith in his existance than you need faith in your dog's existence.
But there's a difference here. I was speaking of faith in the nature of something. I know dogs exist, but I take it on faith that they truly care for their owners. It's one thing to say 'my dog saved my life', and another to say 'I know my dog would save me from a fire, even if he knew it would get him killed'. That's the kind of faith I'm talking about.
Semantically, I would call what you are referring to as the belief portion of faith, rather than faith in its entirity. I can believe someone exists and believe what they say without having any faith in their abilities or sicerity.
Life is a whim of several billion cells to be you for a while.