Bitcoin's market capitalization accounting for 59.15% and still rising indicates its dominant position in the cryptocurrency market. It brings stability in some ways as it is often seen as a store of value within the crypto space, attracting capital during market uncertainties. However, if Bitcoin's dominance becomes too extreme, it may stifle the growth of other cryptocurrencies, potentially leading to a less diverse and innovative market. In terms of development trends, it may set the tone for the overall market's direction, with other coins following Bitcoin's price movements more closely.