While wasm can export functions, a use case might be running a stand-alone wasm application and if so then it seems appropriate to define a cold-start function. This could be used in self contained wasm code that does not depend on wrapper user code to launch it. What if the wrapper code itself were wasm code - this needs an entry point. What do people think, should a main cold-start entry point be defined in the spec, or is this out of scope?