The blockchain has split into two to speed up transactions and lower costs. And the market has responded positively to the change, pushing the value of the crypto currency to record highs.

The blockchain has split into two to speed up transactions and lower costs. And the market has responded positively to the change, pushing the value of the crypto currency to record highs.

The blockchain has split into two to speed up transactions and lower costs. And the market has responded positively to the change, pushing the value of the crypto currency to record highs.

The blockchain has split into two to speed up transactions and lower costs. And the market has responded positively to the change, pushing the value of the crypto currency to record highs.

Terminator 2 director James Cameron worries that reality is catching up to science fiction, while tech titans Musk and Zuckerberg trade barbs over the potential dangers of artificial intelligence.

Terminator 2 director James Cameron worries that reality is catching up to science fiction, while tech titans Musk and Zuckerberg trade barbs over the potential dangers of artificial intelligence.

Terminator 2 director James Cameron worries that reality is catching up to science fiction, while tech titans Musk and Zuckerberg trade barbs over the potential dangers of artificial intelligence.

Terminator 2 director James Cameron worries that reality is catching up to science fiction, while tech titans Musk and Zuckerberg trade barbs over the potential dangers of artificial intelligence.

Our weekly news round-up: Keck telescope finds 9000km long storm on Neptune; Global VR revenue predicted to hit US$37.7B by 2020; Gene editing fixes disease-causing mutations in early stage human embryos; Breakthrough sunscreen made from salmon sperm; LastPass price hike comes with new features; Android speed control for YouTube; Ransomware saviour detained by FBI; Ultra high compression digital storage; Scamwatch update.

The British Medical Journal reports that policy makers, educators and doctors should stop advocating "complete the course" when referring to these life saving drugs. Instead we should stop taking them when we feel better.