Science & Technology Q&A for Kids (and others) [November 5, 2021]

Stephen Wolfram answers general questions from his viewers about science and technology as part of an unscripted livestream series, also available on YouTube here: https://wolfr.am/youtube-sw-qa Questions include: How does a short wave radio signal go completely around the world? - Will new logic or mathematics operators might be invented/discovered? - Why do we have 2 different things such as (numbers + operators , data + algorithms) and why do we represent many things with those 2 things? Why not 3? Why not 4? Why not 1? - What's the difference between CPUs, GPUs, TPUs, ASICs? - How viable is a big numerical reverse database to identify closed forms of real numbers such Plouffe's inverter?