Why does Bitcoin first grow on the exchange, and then other coins grow?

[emma.lee1890]

Because Bitcoin is sort of like "the mother of cryptocurrency" where every of its child follows its rise in the market. Most holders tend to store their crypto investment in Bitcoin because they believe its volatility will cause high price. As the other coins rise, they tend to buy with Bitcoin also through exchanges because of its high price. Due to high price of Bitcoin overall, they can invest a lot in lower coins that also contains the potential for its price to rise up. Now that Tether is being used as security asset for profits and more various purposes that correlates in Bitcoin, Bitcoin is now gaining more adoption all around the world. Crypto market is quite complex. Bitcoin can rise constantly now or flatten itself in a margin because various investors are focusing on other coins.  It could be either go into your said "healthy market" or it could be the dominant market itself that will kill all other coins but that is quite impossible because Bitcoin isn't perfect as any other currency. There are currencies that have a unique feature that BTC doesn't have.

[Fenix]

Indeed, the Bitcoin price increases first, and the Altcoins rise in price after it. This is due to the price dominance of Bitcoin in the cryptocurrency market, and this, in turn, is associated with a high level of Bitcoin capitalization. As long as the capitalization of Bitcoin will significantly exceed the capitalization of other cryptocurrency, it will exercise price dominance. I think that with the development of cryptocurrency, the level of Bitcoin capitalization will fall even regardless of whether it will improve its functional qualities or not.

[Quart]

I think it because of Bitcoin as the most coin pairs. Bitcoin is like the indicator of better progress or positive move on crypto market. As you said, it is true that when Bitcoin price increases, then the prices of altcoins will follow it.

[88percent]

Bitcoin is the king of cryptocurrencies, it influences all coins/tokens prices. I assume Bitcoin is the main coins on crypto system. So, the change on Bitcoin price will directly bring impacts to the prices of other coins. 

[verifyme]

That is right. The presence of Bitcoin in 2009 led the other cryptocurrencies called altcoins emerging. Moreover, since the Bitcoin has that big volume in some years it can reach very high price on the market, it makes many people compete to create interesting cryptocurrencies. However, not all of the coins can compete or survive in the crypto market.

[Fenix]

Because Bitcoin now has a direct price dominance over other types of cryptocurrency due to its high level of capitalization. It seems to me that in the future the level of capitalization between the cryptocurrency will level off and in the end a few coins will have a relatively insignificant advantage in the level of capitalization and price dominance in the cryptocurrency market will disappear.

[debra]

Bitcoin is like the main coin in cryptocurrency. It influences other coins when the price going up or down. This coin has already set to have many pairs. So, when it moves, the pairs are also influenced. I am not surprised with this phenomena, everybody knows about it.