History of Science & Technology Q&A (March 20, 2024)

Stephen Wolfram answers questions from his viewers about the history of science and technology as part of an unscripted livestream series, also available on YouTube here: https://wolfr.am/youtube-sw-qa Questions include: Has any species evolved in a measurable way since humans have been observing and tracking evolution? - Why are there more bacteria than blood cells in a human body?​ - Would you say humans have aided in the evolution of domestic animals?​ - Has all of Grothendieck's work been understood yet?​ - What was the earliest use of radioactivity for light or heat?​ - What current technological advancement would be most beneficial to ancient societies?​ - Getting to significant and industrial scales was really hard for penicillin.​ - What kind of technology present today do you see becoming nothing more than history? What are some examples of previous technology being discarded?