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In Brief Renowned author, futurist, inventor and Google's head of engineering, Ray Kurzweil, spoke on his reticence to embrace bitcoin. He is not the only expert to have their qualms about the burgeoning digital currency.

Ray Kurzweil, a leading futurist, author, inventor, and the head of Googles engineering lab, has made some impressively accuratepredictions about the future. However, this may not be the best news for the burgeoning cryptocurrency, Bitcoin. Kurzweil spoke at the Exponential Finance Summit in New York City late last week and he had some less than flattering things to say about the currency. While he may see the value in the decentralizationof currency, he doesntfeel like Bitcoin is the way forward.

He explained:

Currencies like the dollar have provided reasonable stability. Bitcoin has not. And its not clear to me that the whole mining paradigm can provide that type of stability Weve seen tremendous instability with bitcoin, so I wouldnt put my money into it. I certainly do think there could be alternatives to national currencies emerging in the future. Algorithmic ones are a possibility, I just dont think weve arrived at the right algorithm yet.

Kurzweil is not the only high-profileBitcoin skeptic or opponent. Billionaire investor Mark Cubanspoke out about Bitcoin last week, denouncing it as a currency and discussing it as a bubble. Kurzweils comments echo these sentiments, especially with his view of the cryptocurrencys instability. However, Daniel Roberts from Yahoo! Financesees Kurzweils view of that instability as an oversimplification. When looked at in the long term, Bitcoin is showing steady gains.

Bitcoin has enjoyed a meteoric rise in recent weeks as prices have surpassed $3,000 (albeit briefly). In the first moments of 2017, Bitcoin could barely reach the $1,000 mark. As of today, the cryptocurrency stands at more than $2,550.

Bitcoin is powered by blockchain technology. A blockchain is a decentralized ledger that allows for complete anonymity, security, and transparencyfor all transactions taking place on the ledger. Kurzweil is more optimistic about blockchain, saying, I think once we can demonstrate confidence, then yes, a blockchain currency makes sense, and being able to document transactions securely, but theres a lot to work out.

In an effort to work out those kinks, many companies and even some countries are adopting blockchain technology. Some countries are even exploring switching their national currencies over to cryptocurrencies. We are in the early stages of its development, but this could go down as one of the few predictions Kurzweil gets wrong.

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Ray Kurzweil Says He Wouldn't Put His Money in Bitcoin but Doesn't Dismiss Blockchain - Futurism