It seemed to me that there are still few places where you can learn the blockchain, but I see that with each passing day it becomes more. It certainly makes me happy.
I'm not surprised that Oxford University is ready to make you a specialist in half a year. All such leading university of the world. One problem with all these super courses is that they are available only to guys with a big wallet.
Education and can not be cheap if you want to become a good specialist in such a short time. But, of course, if you are not very proficient in fluency in English, then you may have problems understanding the materials, especially with distance learning
From inexpensive courses there are brief reviews on the blockchain from skillshare. But I prefer the cryptocurrency and blockchain training programs on the taklimakan. It operates on a monthly subscription system and educational materials and trading tools for analysis are available immediately