[daveslash]

Seriously. We're soooo over 1-d barcodes. Need to get a QR code on all that stuff. MMmmmmm.... Fiducial markers - that's hot

[mikrl]

brb patenting higher dimensional barcodes / tensor barcodes

Finally, we can use holograms for something mundane!

[marginalia_nu]

Pretty neat. You can encode 100 megabytes of data in a 4x4x4x4 cm tesseract, just need to apply an appropriate rotation around two of its axes and then you can extract the information as it intersects with 3d space.

[mikrl]

That adds an additional temporal component to the scanning process which makes me hesitant.

However, the idea is ridiculous enough to greenlight.

[smitty1e]

Just go full panopticon with a thousand cameras, so that the looters don't need to put in all that selfie effort.

[colejohnson66]

That’s Amazon Go.

[Gigachad]

They usually use 2D barcodes for weighed items at the deli.