Question
Pre-revenue, what metrics did you use to know that you are not starting an illusion?
At what point did you decide to go to production/crowdfund/raise money etc.?
Answer
When CAC < LTV, but the trick here is pre-revenue so the only way you could actually really have a comprhensible gauge on this would be if you did a kickstarter, indiegogo to measure "interest" before engaging in real "physical" product development.
Remember a crowdsourcing site goal is not just to fund a product but also can help as a tool to measure "interest". Think of it as a "surveymonkey" for physical products.
"X" amount of interest could actually give you a hint of what the possible outcome could be and if you are starting at an ilussion or not.
Good luck :)
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