One doubt about this:
easily reversible (if the cashier rang my brussel sprouts through on the other guy's bill by mistake they should be able to credit them and charge me within a few seconds)
Do we know if Dash evolution, contemplates some mechanism or technology?
Thank you
Yes, Dash evolution does indeed. Not sure where all the info is on that but it is out there somewhere.
It will be optional, here is a glimpse....
Dash Evolution Preview -- A Glimpse at the Future of Payments
https://youtu.be/7J4m04Tkfb4?list=PLDUbBQQ8iiY_ZE8SC-xuOTQiM2rKpPIlv