The hilarious math of the SpaceX IPO
Nebula: https://nebula.tv/videos/tfc-the-hilarious-math-of-the-spacex-ipo
YouTube: https://youtu.be/ISP2Y83FoiA
The hilarious math of the SpaceX IPO
Nebula
Replies:
7
@Techaltar Elon math just maths different, trust the overly entitled racist
@Techaltar On your brief about EV market share, I saw this very nice website with monthly data for most countries yesterday https://robbieandrew.github.io/carsales
@LeoRJorge Brazil being 80% Ethanol-petrol is hilarious
@Techaltar It's a crazy story. One of the government reactions to the oil crisis in the 70s was to invest in sugar cane ethanol as a fuel. There were pure ethanol cars all through the 80 and 90s but with low market share because they were horrible at even mildly low temperatures. With electronic injection etc., the "flex" technology was developed in the early 2000s, with cars able to use any mixture of ethanol and petrol with no clear downsides and good performance all year round. 1/2
@Techaltar This took over very quickly... The problem is that huge areas of the country are covered in sugar cane for ethanol production. Even though the economics is much better than corn ethanol from the US, the same trade-offs apply with no major reduction in CO2 emissions when you account for the whole supply chain. 2/2
@LeoRJorge Is it still a thing becasue of subsidies, or because it makes sense financially? And do you need different engines, or can you just use the existing ones?
@Techaltar not an specialist in the mechanics, but afaik it's basically the same engine with some changes to other parts to withstand the higher combustion temperature and corrosion. The breakthrough was some software that allows the car to assess the mixture from the combustion products and adjusts the mixture to compensate. Other relevant thing is that a small percentage of ethanol has been mandatory also since the oil crisis to buffer the price. 1/2
