- Google: Actually there's a lot to improve on Google, and a ton of value there. Just think that instead of what Google gives on medical info, you'll be refereed to an AI that will ask you questions, and give you top quality information like a medical expert would(or better - more time, better quality content, etc...). Or the million ways better search could help engineers/scientists/lawyers/etc...
Actually i would like to see something like a subscription marketplace for quality search engines(where your query is refered to the most suitable search engine and profits are shared fairly). Would be interesting.
- Replace universities: Just solve the affordability problem. That would be huge enough.
- Ongoing diagnosis - If it works well, and affordable enough, could create plenty of value. But that's a big if.
But the rest, sure they seem mostly about money.