[namecheapTA]

? I explained in my post I take it to car washes on hot days. Cold water conducts way better than your idea of "shock" via air and sun rays.

Your winter water idea shows you might almost understand water conducts better than air. So it's just proof you don't read well. And either way, it's 1000x more extreme than what an laptop screen experiences.

[Maursault]

Again, what you are describing will not produce thermal shock. Car wash water isn't "cold water" and is probably less than 10° colder than the ambient temperature, and it is applied relatively slowly, allowing the glass to equalize before it is stressed.

What is required is a sudden change in temperature. For something as thick a car windshield, you'll need a near instantaneous 40° temperature change. If your car windshield was blazing at 150°F and you tossed a bucket full of cold, equalized ice water on it, it's going to shatter.

But you have some good ideas, and I welcome new Apple laptops with quarter inch thick glass displays.

[namecheapTA]

Jesus. I can't even be bothered to keep going with this.