ITT: worthless technology i'll start with QR codes

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>>55151848
4Chan

mfw ms even removed that feature from win10mob

>>55151889
>4Chan
4chan isn't technology

>>55151848
cameras

>>55151889
Who?

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Exogenetics.

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>>55151889

>>55151848
QR codes are just 2D bar-codes

They make more efficient use of space.
The problem with your picture is that it is too fucking big

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in my contry qr works fine

>>55151848
>I have never left my room.

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QR codes are ace boss.

>>55151848

3d printers
VR
Any video above 4k res & 120fps

>>55153750
You mean any video above 720p and 30fps?

Also, how is 3D printing worthless, are you retarded? But seeing you value high frame-rates you're obviously a gamer, so yeah, retarded.

>>55152727
Pretty sure they work the same way internationally.

>>55152309
>2D bar-codes

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>>55153750
>>55153823
why the hate for higher res? sure it makes hardly any difference for normal viewing but continuing to develop this stuff will have benefits

>>55153873
It's just /g/ spergs hating everything they can't afford.

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>>55151848
aren't they prevalent in manufacturing though

>>55153854

Yes. The information in a normal barcode is stored along 1 dimension. The bars are only long so they are easier for the machine to pick up.

In a QR code, the information is stored in a matrix along 2 dimensions.

>>55154239
Barcodes only exist in the 3rd dimension.
A first dimension barcode is imaginary math bullshit.

>>55154326

Yes, the physical representation is a 3D object in our world, but the data is stored as a 1 dimensional array. In a QR code, the data is a 2 dimensional array.

Are you literally retarded?
>trip code you spent way too long generating
Oh, sorry. I hope your carer is nice to you.