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
IMO, this is the whole reason people use Bayesian Methods in the first place - it solves the cold start problem - building a model when you don’t have data to build a model.