Oh yes because Scawen has a million pounds and we all have supercomputers to play it on. Surprisingly enough you can't do realtime calculations on a desktop computer to perfectly recreate tyre physics......
Yes because Lewis (or should I say LEW1S!11!1) can exactly relate a slight amount of extra understeer on cold tyres to line 4752 of the code which relates the change in camber of the tyre under load to a change in grip whereas a mathematician/physicist couldn't
Errrrrm, I'd definitely agree that the temperature/grip ratio is wrong as the temperature increases but "re-doing" the calculations isn't just adding 10 gripz when the temperature goes above 70 degrees celcius.... And LFS tyre physics certainly aren't awful - they're much better than rFactor for a start.