Zuckerberg, really?
Don't know about the rest of you, and I know Lissajous images and shapes are not copyrightable, but I bet Zuckerberg is trying, has tried, or paid someone off to enable him to do so, but I'm a bit offended. I wonder if he's copyrighted the exact phase relationships?
I first saw the 1:1 and 1:2 XY frequency ratios displayed on my dad's tube-based oscilloscope when I was probably four years old or back in 1952...and many times more over the next 10 years or so.
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Everything depends on everything else