It may seem fantastical, however, one underlying key point mentioned (but not harped on) is how much of this is driven by exponential growth (or improvements) such as driving costs to "zero" and reduced cycle times.
One thing that worries me is lack of regulation. "Digital" things don't break out of their environments accidentally. It's only when computing became ubiquitous that regulation really kicked in. And of course privacy was long gone before digital regulations began to kick in. What will happen with "street bio"?