__ New age technology has enabled consumers to pay for groceries with one wave of their hand, a development that has been deemed “kind of scary”.

The technology was highlighted in a video of a woman checking out of US retailer Whole Foods with Amazon One – a system allowing shoppers to pay with a mere flash of their palm. __

Hmm, interesting. Not sure what I think about this. Anyone in the US using it already?

I mean it's convenient. You can't forget your palm at home. Your palm can't run out of battery. It's pretty hard to replicate based on the article which suggests it is "impossible for a person’s palm to be replicated because its scan captured the hand’s 'underlying vein structure to create a unique numerical, vector representation'”.

I'm guessing this is for small transactions, not buying a car, so I doubt people are going to be chopping off people's hands and using them to buy groceries (hopefully!).

Could be a useful tech?