For what you said-—”A lot of scientists propose theories that turn out to be wrong.”-—to be accurate, the professor would have to have abundant scientific data that have been repeatedly tested by himself and others before he could put forth a theory. And, as I said, there are no scientific data supportive of ID.
There are no repeatable, laboratory experiments regarding the evolution of species either. Theories explain anomalies in data. Life is an anomaly. You cannot create it in a lab. Therefore all of your theories regarding life are unscientific.