there are lots of back-end engineering you need to do not that this is a bad thing to do it is it is good unlike if we really need to work on better and better pipelines for data creation however good supervision may not be cheap for example annotating what are the objects contained in an image is probably something that you can take for granted now because people have created a lot of datasets but if you move to another domain like medicine or legal creating another data set may actually be pretty hard so taking advantage of