The article covers a number of aspects in very informative manner, It is really helpful for person with limited knowledge of crypto-currencies and block-chain system. You sir, Have my upvote !
Also I'd like to say people always hesitate and take long to adapt to the new trend or system, If any of you believe that crypto-currencies do not hold any potential or are a scam (pretty harsh word) then you're completely wrong. It has been proven over and over again that crypto-currencies are the best method of transactions and they'll only grow in the future, the exchange prices will keep rising for almost a decade or so due to national currencies falling in value (as explained very well in the article). My suggestion is that just buy or earn as many crypto-currencies as you can hold, they're a better investment than purchasing land or anything else in that matter.