There are all these things that add up into this business that's Walmart that keeps it really interesting. At the root of it all, though, it's a people business and it's a merchandising business. Today, it's increasingly a technology business. The supply chain is critical, of course, and real estate still plays a key role.

From a very early age, I also realized I wanted to invent things. So I became really interested in technology and also then, soon after, in business, because I figured that inventing things wasn't any good; you really had to get them out into the world and have people use them to have any effect.

So growing ecommerce in the marketplace is key to being able to attract more advertisers. What we can do that some other people can't do is we can connect the dot between an ad you may have paid for digitally and a subsequent purchase in a physical store so that you can see the ad actually worked. So it too is an omni business for us.

Looking ahead, we will compete with technology, but win with people. We will be people-led and tech-empowered.

In the case of Apple, they did originally do production internally, but then along came unbelievably good outsourced manufacturing from companies like Foxconn. We don't have that in the rocket business. There's no Foxconn in the rocket business.

There's so much happening with the youth looking at local or national problems and solving them with innovation and technology. This is what startup success means.