I think there's a massive opportunity to lower costs and improve user experience in every area. I wish Apple used their pile of cash to invest in a big vertically integrated healthcare service - a chain of hospitals, in-house-developed software throughout, improve user experience, integration and tech on every level. Basically healthcare rethought from the ground-up with Silicon Valley consumer-oriented mentality. Yes, extremely daring, but they're in a unique position to pull that off.