I was recently trying to work on a ML project and realized that the I need very specific type of data for what I am trying to achieve which makes me wonder how do people and companies deal with data scarcity, I am pretty sure they at some point need very specific type of data which isn’t easily available
You learn about the business, AKA domain knowledge. Plus the CEO loves it when you give them an explainable and simple model rather than a fancy black box (even a decision tree) when you work with little data.