HelloCustomer. A forecast budget works well when everything is predictable. You can look at past expenses and get a good idea what future expenses will be. However, if your business or product is seasonal with ups and downs in production or sales, then a flexible budget works best.
Low comedy was first denoted as comedy for the commoners because it was most often practiced by street performers. Over time as low comedy began to include lewd jokes and more physical comedy, more mainstream performers began to practice this type of comedy: stand-up comedians, musicals, etc.
Comedy, on the other hand, usually revolved around normal people moving up in the world and would feature a happier ending. This was the origin of the word comedy. In literary circles, people often talk of high comedy and low comedy.