Those tweets and news about Bitcoin from those who we believed to be professionals or experts must be trend on carefully because many of them have once tweeted about new technologies and the revers was the case, like the picture shared by OP. Knowing not the technology make them to give their selfish judgment about the technology; lets beware of them.

Whether Bitcoin comes to dominate the world of crypto and payment  systems is a different argument, but there is no doubt that its impact on banking is up there with fractional reserves, and the removal of the gold standard.

Bitcoin is slowly growing there is no "failed" - check the network numbers everything is doing nicely.  Mainstream adoption comes at the end there is no rush as such, good things take time.  The altcoins are mostly designed to get more bitcoin. 

Here's a vision into the circuit. Unfortunately, the vision is something everyone cannot have. When you read the same things and come to different conclusions, everyone will have an idea. But it's not nice to say words over your head.

I can understand those who don't believe in Bitcoin. But I do not understand the hatred of their discourse. It's like something that hurts them.
They exclude everything. I'm not saying anything to anyone who has no relationship to crypto assets. Good or bad. I expect the same respect from them. One day, the crypts will either spread out or be completely destroyed. But people with no vision like first post on the thread won't definitely be remembered.

Actually they're not the best examples.

JPMorgan has never shown that they'd been starting to like crypto, they've started to build a stablecoin just because they've seen it can make them money.
Also Facebook's coin may be a cleaver way to avoid some more taxes.

So no, they didn't really get converted, they've just sensed the smell of money.

Already it was prove the banking system because many countries are panic in crypto entering so fiat currency will not survive in future. But Bitcoin will legalised in future so automatically Bitcoin dominate the entire market. I think current market was disappointing to many peoples but reality Bitcoin is the only hope future economy.

Why do you think they are idiots?

Well, they may in fact be after all, but those who jumped on this train in early 2017 (and jumped off a year later) had earned enough. So they are anything but idiots by any modern standard of success. It is rather people who guilelessly and blindly believed in their words which could be rightfully called such derogatory names. But isn't it what advertising is supposed to do anyway, i.e. to help sell you something which is not worth it?


So they are tricksters and con artists

The infamous quote by Paul Krugman about the internet shows that economists are not necessarily good at predicting technological trends. Thus, I take what he and even investment mavens such as Warren Buffett say with a grain of salt. Bitcoin is here to stay whether these people like it or not, and its adoption will depend on factors most people cannot foresee.

I just love the fud that nocoiners and "experts" are doing again, it was same in the last cycle. This time i am even more certain on what's coming.

Why do we care what others say? Don't we have our own perspective of what bitcoin is and what it could be ?
If we as users use bitcoin for the right purpose and encourage others to understand what it could be and make use of it then who do you think will be able to stop the exponential growth of bitcoin.
What bitcoin can be in future depends on what we do with it now. So instead of asking others, listening to others' perspective about BTC, make your own perspective about it and strive with all your heart to make it possible.