At $21B, it's still undervalued. Coatings matter. I have a high-end garden hose that leaves goo on my hands when it's hot outside; a cooktop that's ridiculousl

At $21B, it's still undervalued. Coatings matter. I have a high-end garden hose that leaves goo on my hands when it's hot outside; a cooktop that's ridiculously hard to keep clean; a windshield that requires way more polishing than it ought; a toilet bowl that gets grungy 5x faster than any of the others. Provably solve those issues and I'll gladly open my wallet.