2019 was a huge year for quantum computing
https://thenextweb.com/artificial-intelligence/2019/12/23/2019-was-a-huge-year-for-quantum-computing/
'There were too many breakthroughs, research papers, and huge announcements for us to cover, much less list here. But, if you ask us, 2019 was the best year for quantum physics since Einstein started thinking about relativity. And 2020 is shaping up to be even bigger. See you in the future!'

https://www.reportbuyer.com/product/5312285/quantum-computing-market-and-technologies-2018-2024.html
'According to the “Quantum Computing Technologies & Global Market – 2018-2024” report, the global Quantum Computing market* will reach $10.7 billion by 2024, out of which $8.45 billion stem from product sales and services and $2.25 billion from government-funded RDT&E programs.'



Are they all wasting their time and money - billions -?

Researchers from the Russian Quantum Center suggested that quantum computing could eventually obsolete blockchain altogether.

"Within ten years, quantum computers will be able to calculate the one-way functions, including blockchains, that are used to secure the Internet and financial transactions. Widely deployed one-way encryption will instantly become obsolete." https://www.nature.com/articles/d41586-018-07449-z

Quantum computers put blockchain security at risk - Bitcoin and other cryptocurrencies will founder unless they integrate quantum technologies, warn Aleksey K. Fedorov, Evgeniy O. Kiktenko and Alexander I. Lvovsky.

Quantum Computing: The Real Game Changer

'Some say that quantum computers would be an end to the blockchain technology. I honestly think there is a possibility of this happening, I might not be able to talk much about it here.'
https://medium.com/the-andela-way/quantum-computing-the-real-game-changer-e60010d77fe4

https://www.cnet.com/news/for-faster-quantum-computing-microsoft-builds-a-better-qubit/
For faster quantum computing, Microsoft builds a better qubit

Google just announced quantum supremacy, a milestone in which the radically different nature of a quantum computer lets it vastly outpace a traditional machine. But Microsoft expects progress of its own by redesigning the core element of quantum computing, the qubit.
Microsoft has been working on a qubit technology called a topological qubit that it expects will deliver benefits from quantum computing technology that today are mostly just a promise.
"We've really spent the recent few years developing that technology," Krysta Svore, general manager of Microsoft's quantum computing software work, said. "We believe we're very close to having that."
The key advantage of Microsoft's topological qubit is that fewer physical qubits are needed to make one logical qubit, Svore said.
Specifically, she thinks one logical qubit will require 10 to 100 physical qubits with Microsoft's topological qubits. That compares to something like 1,000 to 20,000 physical qubits for other approaches.