Whenever you have multiple devices including multiple PCs that you want to share information with, it's always been a bit complicated.

With Windows 8, Microsoft is trying to gain market share in what has been dominated by the iPad-type device. But a lot of those users are frustrated. They can't type. They can't create documents.

People are using Windows PCs more than they watch TV now.

Software substitution, whether it's for drivers or waiters or nurses - it's progressing. Technology over time will reduce demand for jobs, particularly at the lower end of skill set.

Countries which receive aid do graduate. Within a generation, Korea went from being a big recipient to being a big aid donor. China used to get quite a bit of aid; now it's aid-neutral.

Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

Outlook 2003 did create the idea of search folders and the whole Longhorn philosophy. You can see it at work in search folders, where instead of having to drop things into individual folders, and things exist only in one folder, you create these search folders and you have the criteria for the search folder.

It's really kind of cool to have solar panels on your roof.

Humanity's greatest advances are not in its discoveries but in how those discoveries are applied to reduce inequity.