Thank you for your insightful response, Ales. I didn't realize that the economy is so tied with advances in technology. If what you're saying is true, then we can be relatively optimistic about future. I've seen a bunch of Google self-driving cars in test in Mountain View, so maybe in 5-10 years we may try a prototype ourselves. SpaceX has got its first success, so maybe in 5-10 years we may be traveling to the space. Facebook released its Oculus VR, so maybe in 5-10 years virtual reality becomes interchangeable with the real world.