The number of crypto currencies grew up in recent years, so the bitcoin share is reduced, but it does not mean that it loses its value.

LN has been "a few months out" for about 3-4 years now.

I wouldn't count on it too much.

I'd say in a year BTC market dominance is under 20% for sure.

Yes, bitcoin is losing its share because investors realized the shortcomings of bitcoin (fees, delay, public transactions) and are flocking towards altcoins with modern features and brighter future. Bitcoin won't die, but it won't be at the summit for long.

When regulations are enforced (soon I believe) there will be a huge market shift towards privacy crypto-currencies that protect users from being identified. I recommend looking into anonymous, private, decentralized and open-source coins. Do your research and pick what you feel will be a huge public attraction in the future.

BTC dominance is a rather useless metric, especially since new alts keep popping up by the hundreds. Things only get interested if any of the top 5 coins get close to BTC's market cap, as was briefly the case with ETH last summer. Question being whether it's going to be ETH again or one of the contestants that are trying to give BTC a run for its money.



Here's the thing about regulation and privacy focused cryptos though: I'm not sure whether an increase of regulation would be all that positive for anonymous coins, given that stronger regulation may force exchanges to explicitely delist non-traceable cryptocurrencies.

i think if you always have negative thinking about crypto then that is not good for you because it so praiseworthy and that's why it run,Think always why your here in crypto world like your here because to earn or to learn that's crypto can brings. i will keep going down for too long. In my opinion, the future of this is very bright, dont be so pessimistic about the trend

True bitcoin will not die as claimed by some people...But I think with stiff competition bitcoin need to upgrade itself and be in the race...If not I think bitcoin may loose its No.1 position

It's normal for a first mover to lose marketshare without much additional innovation.   

I think that now more and more people are investing in alt coins and and Bitcoins is thus suffering.

I rate for 2018 bitcoin will again repeat its success and will triumph as last year could even more, all we need is just be patient to wait for it to happen, I think so.