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Wrote an addin for Excel which offloaded workbook computation to the GPU for about 10-20x speed improvement.

Posted a video demo on YouTube and keep getting the few odd messages once a month asking if it’s available for sale but I’m still clueless on how to properly validate whether it’ll sell.

To make it a complete product would require a lot of time which I don’t have right now

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> Posted a video demo on YouTube and keep getting the few odd messages once a month asking if it’s available for sale

This is your validation! People are literally reaching out to you asking if they can give you money for it.

I can't tell you how many places I've worked that rely heavily on excel scripts and they're so unbearably slow. These are core functions of the companies and even higher ups use them. There's 100% a market for this and it affects the decision makers so they'll definitely shell out for it.

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