A model proportional to the data density can be used with MCMC sampling to generate samples.

“if you had let's say, let's say you have the perfect um energy based model, like you uh like th someone comes up from the heavens says well this is your this is the right parameters, you plug them in and now you have kind of the the accurate data generation process. You can use them to generate data. Right, in fact this is not even that special of like uh a property. Fundamentally, as soon as you have something which is kind of let's say proportional to your density, you can throw this into M_C_M_C_ samples.”