For the record, here is grandparent question I deleted: > By that logic aren't most scientific theories unfalsifiable? For example, I might have a theory that

For the record, here is grandparent question I deleted: > By that logic aren't most scientific theories unfalsifiable? For example, I might have a theory that the speed of light in is 600,000km per second. Your measurements suggest it's actually 300,000km per second. I then say, "I can just explain it away by saying there's another rule about the mirrors you used that halves the apparent speed of light".