Why there is criticism in between bitcoin and blockchain ?
Talks associated with the bitcoin says "forget bitcoin and its blockchain which will emerge as future technology. Blockchain can change the world it looks now and what it will look in future we cant even imagine . 
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) Alibaba 's Jack Ma says : bitcoin is a bubble and joins the list of warren buffet who also says bitcoin a bubble .
Jack Ma' Ali pay introduced and started a blockchain based money transfer{international transfer} from hongkong to phillipines , being a techie Jack Ma himself said bitcoin potentially a bubble. 
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My opinion
As being a starter Jack Ma have started blockchain project and it will help people in dealing with the transactions from workers working internationally can transfer their money daily with low fees . Blockchain technology can change our lives more than we imagine , its not just the new world order but a revolution which will help normal people . It is more transparent and accountable than todays servers which we use for transaction in which we need to have secret servers to store the data transactions whereas the blockchain is a ledger which automates and distributes itself in blocks and serves on internet with no centralisation and is completely decentralised and peer to peer transactions .
Monika Singer a blockchain advisor at global blockchain council
Who goes with the title of creator of opportunities says there have been lot of change which is taking place , and old world order is afraid of it . The blockchain will give us a decentralised web and will bring us out from centralised google ,amazon and facebook. Also says i dont know hoe blockchain works but we should know how it is used in our daily life purposes.
My Views
Tokens and decentralised market of cryptocurrencies is making new platforms and deals with public utilities as due to volatality in the market many are in confusion .
we have also seen a worldwide decline in the stocks exchanges and in the coming future we will see more ico and tokens to be used .
consumers will be benefited immensely from blockchain.
Tokenism and Decentralisation is a new way of transaction of new world order .
Blockchain is making a new world where products and services will be put together and will change the way we transact today and will be different in future .
The future technology giants will challenge the status quo by creating the new applications which will be totally based on the blockchain technology . More ever the techies are working hard to give Dapps to the people till this 2018 ending , as they will be similar to the normal apps but only difference will be that it will be based on the blockchain .
Why billionares says bitcoin a bubble ?
) My opinion in this is that the billlionares have missed it when it was at 1$ and it spiked upto 19000$ why will they not say it a bubble ,because they have not been benefitted from it . It will again burst its ATH but noone knows when and why .
Bitcoin which started before 10 years no one believed it will be that much huge , why it is so huge because it is globally traded and billions were put in it when evreyone saw it spiking high and those who were holding from beginning sold it and bubble burst ,is this we say bubble that will again burst .
i will say yes it will burst again but dont know when may be in coming months or year or after 2 years . when trillions will be put into it . the bubble will burst again those holding it back below the base level for months will sell and bitcoin bubble will burst .
CONCLUSION
There will be lot of criticism based on the volatality and price speculation of the bitcoin and market ,many investers which just followed bitcoin dont know what the technology is , many didnt research about the investmensts in which they invest but because it is hyped people invest in it .
As we have also seen in 2013 when price went upto 1000$ and then reached to 100$ so one should not be surprised with the bitcoin price its very volatile in nature .
There is need of awareness and education regarding the blockchain and crypto for the investers as many youtubers who are sponsored try to manipulate the investers and take their profits should not be their .
These markets of cryptocurrencies will be here and are not going anywhere but little volatality is their but if you are long term invester you should relax and have a cup of coffee as such blockchain is forever .
HAVE A NICE DAY
I completely agree with your opinion.
Appreciable
@sohailahmed we are at despair stage and the story are created to manipulate the market so that people should sell at low price what do you think
Obviously we should hold it for long-term and after 2-3 years it will be so huge that price manipulation will not affect it
it is only manipulation which will not be seen when our community will become strong enough that manipulation will not affect it
Thanks for the article! Resteemed. Billionaires have alot to gain by driving the price down so they can grab coins cheap. Low float.
Appreciable