With reference to gaining a fundamental understanding of bitcoin, Language Barrier is one element which is often over-looked.
Bitcoin's Whitepaper published by Satoshi Nakamoto in 2008 is fundamental to understanding bitcoin and blockchain technology.
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Definitely language barrier is a problem can be a cause why cryptocurrency has not yet reached other people. That is why it is quite good that people all over the world had started making thwir own reviews an insight about cryptocurrecy/bitcoin in their local language. Also the reason why translators are needed by developers to be able to reach-out investors which cannot be reached due to language barrier.