Then why work for 18 years to make make a fully fledged OS if in the end the expectation is that it does nothing? For an OS practicality is pretty much always a

Then why work for 18 years to make make a fully fledged OS if in the end the expectation is that it does nothing? For an OS practicality is pretty much always a concern, if not necessarily the top one. Otherwise it's relegated to literal "toy" status. An OS without any practical apps might as well be a GUI made in Flash. Looks nice, does nothing.