Margin is a key part of leveraged trading. It is the term used to describe the initial deposit you put up to open and maintain a leveraged position. When you are trading cryptocurrencies on margin, remember that your margin requirement will change depending on your broker, and how large your trade size is.
This is just one example, but it definitely highlights the difference between trading on Binance and Binance.US. Although small traders won't make much of an impact on either exchange, all else being equal, most traders would prefer to trade against the larger book, rather than the smaller one.

Liquidity measures how easy (or difficult) it is to swap one asset for another. Traders want to be able to convert one asset for another asset while having a minimal impact on the price. The more illiquid an asset is, the harder it will be to trade it without causing a major price change. Therefore, liquidity is an extremely important factor to consider before deciding where to trade.
All the signs, however, were there. Like previous bubbles, people were basing their belief in the cryptocurrency on their emotions, not any intrinsic value. Then there was the FOMO element, which only compounded things. Essentially, bitcoin became an international fever. Random companies were “pivoting to blockchain” for no apparent reason other than that it seemed like a way to create buzz. But when the bubble bursts, FOMO turns into fear of losing, which makes for an especially rapid plunge.