Technologies are mixtures of Craft and Science
This is a follow-up to my discussion of high Covid incidence (cases per population) in Europe. As of Nov. 23, France has turned things around. Other European countries are at least not getting worse. The US is still growing rapidly. Continue reading
European countries are now doing as poorly as the US in Covid cases. Continue reading
Contrary to medical myth, parachutes were and are carefully tested before a design is adopted. Continue reading
We cannot isolate every possible Covid contact for 2 weeks. How to make smart choices of who to contact, test, and ask to self-isolate. Continue reading
Covid-19 is growing exponentially. Exponential growth is funny (counterintuitive). For a while, nothing seems to be happening. Then very quickly everything explodes. (Also strange: this visual behavior repeats at different scales.) For example, here is a chart of reported cases Continue reading
Why I don t expect fully autonomous city driving in my lifetime (approx 25 years). Paraphrase: The strange and crazy things that people do. .. a ball bouncing in front of your car, a child falling down, a car running a Continue reading
Even computer chips get old. Trying to predict when they will die, and design them to last throughout their product's lifetime, is getting harder. Continue reading