yes, I agree with you. Optimism is an attitude that a successful person must possess.
I am optimistic with bitcoin from the first I know bitcoin, I am sure that bitcoin will develop well, even I am sure that someday bitcoin will be equivalent to lamborghini price.

Being Optimistic is the key to success!
Of course there's always a risk in investing. So what should we do?
Instead of worrying too much weather our investment will succeed, we must stay optimistic. Its the best that we can do.
After all worrying too much will only make the situation worst! Happy New Year!

I am very confident in 2018 I will be more successful in earning bitcoin earnings by way of trading, because I have prepared and understand the science of good trading, with the science that I have for trading, I am more optimistic to get profit in 2018.

I think that 2018 will be a year of altcoins just like 2017 was a year of bitcoin. I'm optimistic about it, so I'd recommend investing in altcoins. They cost not that much (except Ethereum and Bitcoin Cash), but will definitely grow a lot in my opinion.

I am and always been optimistic about Bitcoins, but I feel one should be bit careful now, with the whales in, it would now make sense to diversify in Bitcoins cash and other coins to. Though currently I'm holding my coins close to me, but I do plan to buy some alts in case major volatility takes place. If on a number scale, I would say 7.5, cause no one knows what new year shall bring.

In the same vein, I am very optimistic about the development prospects of the blockchain in 2018 and the price and price of Bitcoin and altcoin. At the same time, I hope that in 2018, the issuance of ICO projects can be effectively reviewed or regulated, for example, by establishing a convention and so on.

on a scale from 1 to 10 i'm at 8/10 because this has been proven many times that BTC are widely and well supported by loads of people.
Scaling is an issue but i'm confident it will be solved soon (and i'm looking at you 2018) because this can't be ignored anymore, other than that if you are not living under a rock, you see talking about bitcoin everywhere, newspaper, community, hell now even memes on the internet are about bitcoin.

One of them is:
A boy asked his bitcoin-investing dad for 1 bitcoin for christmas
Dad: What? $15544?! $14767 is a lot of money! What do you need $16784 for anyway?

pretty funny because it reflected the last couple of months or even days/hours  

Even with all the FUD and negativity there is around the future of Bitcoin, I'm very optismic about 2018 being the year of Bitcoin. I believe it'll also be a great year for altcoins as well, but i'm more into Bitcoin. Hopefully, SegWit and Lightning Network will be up and running meaning that a much larger adoption will be on its way, and Bitcoin, along with the blockchain technology, will reach new heights.

yes the optimistic sense of bitcoin progress in 2018 is certainly very realistic as it sees the fact that it is happening right now in bitcoin that has been happening the price changes as well as the increase of bitcoin is so amazing, and this certainly has given confidence and trust of all users will be bitcoin progress next year .

are we just talking about price, or evolution of the bitcoin and the cryptocurrency ecosystem? i'm very bullish on the latter in 2018: i'd give it a 10. with the maturation of the markets and financial powerhouses entering the space, as well as exciting new tech like DAGs and decentralized exchanges, it's going to be an exciting year.

i'm less sure of the price trajectory. i am very bullish on crypto in the long term, but i know there will be some big corrections along the way. there's no denying that we are in a major speculative bubble right now. this rate of growth isn't sustainable, but it's also hard to know when it will slow down. at some point, speculation will dry up (like it did in early 2014) and the short term speculators will start selling to long term investors. that could take place next year.