Agreed, we need to focus on the solutions right in front of us. As for your statement about looking for "a more complicated, technologically-aggressive solution that is years or decades away from practical use." -- I think we already have tech-based solutions that we're ignoring. More to the point, we are not demanding that the big tech firms apply their capapbilities but instead get all Jetson-age giggly about owning a self-driving car sometime in the near future.