[tomek_zemla]

I often have exactly the same reaction - the main question being: why? And let me highlight that I am also impressed with the engineering skills required by this (and similar) projects.

The speculative answer that comes to my mind is that engineering is the 'easier' part of coming with a new product. The concept is the 'difficult' part. I put these qualifiers in quotes because there is nothing easy about the engineering, but it comes easier to people that are already working with technology. They know how to make things. Deciding what to make is not an engineering question, but a business (or society) one.

I suspect that this is the reason for quite a few failed startups. They build things that they can, but not necessarily should.

But, again, this is not a criticism of this project, just adjacent discussion.