Joby Aviation lands $500M from Toyota as it races to launch flying taxis. The benchmark S&P 500 is on track to produce a whopping 20% gain for 2024, but companies developing electric vertical take-off and landing (eVTOL) aircraft have floundered. The stocks of the biggest and most visible players in this emerging field of aviation technology have averaged a return of negative 22.2% this year. This stark contrast between the broader market's performance and the struggles of eVTOL companies raises questions f ...