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The Mysterious Genius

The year was 1975. IDM's CEO, Frank was on his way to the office with a grim look on his face. Although the development of the prototype had been completed over a year ago, they had reached a bottleneck and advanced poorly—its performance did not meet Frank's expectations.
They had less than 7 months before shipping out the product.

"You look terrible," Frank's secretary told him.
"When one day you're in my position, that pretty little face of yours will look just like mine," Frank mumbled weakly from the backseat of the car.

They soon reached the entrance to the company, where they found a few people who looked like engineers in an altercation with a girl.
"What are those idiots making a fuss about this time? Can someone just stop them ...?"
Before Frank finished the sentence, he heard a cold, robotic curse coming out of the girls' mouth, "4675636B206F666621596F75207069656365206F66207368697421!"

"... She's right. She's the one!"
"You-you handle the formalities. We need her!"
"I want her to be my chief engineer!"

7 months later, IDM 5100 was launched.

Balderdash:
First decipher attempt

June 16 Rain
The civil war is awful! Day in, day out, the urbanites and the country folks fight each other. Even the children in the parish were forced to take up guns and fight for the countryside.
Come on. They can barely hold the guns up!

Jan 29 Snow
The Olympics were canceled this year. It's obvious that the world is a complete mess and nobody cares about sportsmanship anymore. I doubt there will be any more official Olympic games in my lifetime ...

Dec 24 Fog
Christmas Eve is no longer peaceful. CJD and genetically modified food are destroying our world. Why would mankind continue to pay tribute to God's holiday while they are tampering with His rules?

...

Judging from the deciphered content, this is the subject's diary. However, since the content is most likely fictional and its authenticity cannot be proved, the conclusion is that this is entirely the product of the subject's imagination. Her identity also cannot be determined at this stage.

49276d204a6f686e
205469746f72

Pandora Wilson: Hi, Miss Titor. It's a great honor to talk to you, the chief engineer of IDM.
John Titor: 536176652069742c676f20746f 2074686520706f696e742e.
Pandora Wilson: ... Let's start the interview then. I heard you developed this IDM5100 all by yourself, is that true?
John Titor: 596561682e416c6c206279206d 7973656c662e.
Pandora Wilson: Hmm ... that's truly remarkable. You are indeed a genius, don't you agree?
John Titor: 596f75206265742e446f6e27742 0636f6d70617265206d6520776974682074686520666f6f6c732e.
Pandora Wilson: ... With all due respect, could you speak a human language?
John Titor: 5374757069642c61726520796f 7520616c736f206f6e65206f662074686f7365206964696f74733f.
Pandora Wilson: Quick question, what is the factorization of RSA-155?
John Titor: 3950587458326514452641976 7800614 ...
Pandora Wilson: Fine, fine. Looks like she's truly a genius, if nothing else ...