Exactly, there doesn't seem to be any restraint to creating viruses that would match a naturally occurring pathway. Viruses are simple enough that you can do s

Exactly, there doesn't seem to be any restraint to creating viruses that would match a naturally occurring pathway. Viruses are simple enough that you can do statistical analysis and determine how many years it would take for such an occurrence to take place in nature. Humans have the tools to create viruses that wouldn't occur in the wild before the heat death of the universe.