In the real world, we used fiat or physical money in our daily spending. And this physical notes can be use in fraudulence or a so-called Fake Money.
How about in Cryptoworld, is there also a Fake Bitcoin? If there's any, how can we identify it?
Your question is interestingly SyFy, complicated in its argument, but simple in answer. But, be careful if it is a quick short answer, it can fall into a syfy answer. (Don't ask me what syfy is, the answer is in your question)
I don't know why some people just always put the FIAT in comparison with bitcoin in trivial scam situations, and you end up mixing everything in such a rarely complex way, that it makes sense.
For those who do not follow my idea, it is like counting pears and apples:
That if they can be counted, nothing prevents it, a theoretical physicist would approve it; he would say "...they are fruits," a mathematician would say that when defining the variables X = apples Y = pears, this cannot be counted.
That said, the short answer occurs:
bitcoin is not fake.
Answer to question 2:
Now unlike the real world you mention, there you can see faces, companies technology, trickery, etc, and in some cases tangible Fiat currency is fake. Everything there can be fake, even the coin.
In the bitcoin world it can be the same only that the currency is never false. But of course to begin to understand why it is not, you should first know why you cannot count pears and apples, it is easy.
Short answer: they can fool you with related businesses, but never put a fake bitcoin.
GB.