bitcoin is the first, and it is the one that started everything in crypto, it's the more safe and more developed, i think the other coisn need to prove to be worth more than bicoin not the opposite, there is still a chance to have a better coin in the future, but there are chance to develop bitcoin even more covering the hole and make it the ultimate cryptocurrency, also right now it's a very good safe heaven
Probably , since bitcoin was the first ever successful crypto-currency we should expect it to be known worldwide , it has power nowadays since people were slowly recognizing bitcoin as a way to make their lives better. Bitcoin has gaining popularity day by day and it is storing now raising number of user which makes the value pump, and I thi k thats a good sign, better to seek bitcoins as early as we can so that we can hold into something that maybe soon we can have huge amoumt of amount.
I actually think it derives its power from the masses supporting it. Bitcoin ad you mentioned is the first cryptocurrency success and so commands the fame in the crypto world. It is this fametgats driving a lot if people to come support it and it's consequently getting more powerful.