Steve Caplin on the latest tech news. There's Twitter rebranding, scientists working out how to reverse ageing and ward off dementia and Parkinson's, the Australian military investing in computer-capable brain cells, injured knee tendons being replaced with those from kangaroos, DNA storing data with a biological camera, a relatively inexpensive robot dog that lacks cuddliness and a crowd-funded e-scooter with a more comfortable riding position.
