Relativity: Hoax?

It has long been stated that, E=MC2 is a physics constant. But if time is relative tio the viewer, how can it be a constant to the viewee?

Recently hired Physics Professor Harold Hamish, Ph.D, was tasked with finding the truth.

"I'm baffled!" he reports to us, exclusivly. "How could a genius of his caliber forget to carry the fifty eight?!"

In his professional opinion, despite being terrible at mathematics, Albert Einstein could not have simply miscalculated.

"It's got to be a joke." Harold Hamish, Ph.D states. "A cruel, unusual joke... No wonder the crackpot invented the atomic bomb..."

Once Harold Hamish, Ph.D was corrected on the fact that Einstein was a genius in mathematics by age 14, as well as physics by age 20, he scoffed and punched a waiter.

"Look at that stupid picture!" he complained. "He looks like an idiot! I could science circles around him!"

At this point, he was escorted out of the room by police.

So the question perhaps will never be answered. Was Relativity a hoax?