iNoWorry

"This invention of mine will revolutionise our civilisation and change the way we live in the most profound ways."
"What's it called?"
"The iNoWorry."
"That sounds pretty cool. What does it do?"
"It helps us to stop worrying."
"Oh really? How does it work?"
"The user plugs in these earphones. Actually, they're not really earphones. I mean, they can work as earphones, but their main function is to capture the user's brainwaves. The brainwaves are then transmitted into the device and analysed for signs of stress and anxiety."
"So far so good. What happens after that?"
"If the brainwaves show traces of stress or anxiety, the device will ensure that any worrying thoughts will materialise and come true."
"Wait. So, what you're saying here is that this device will make our negative thoughts come true?
"Yes."
"That's crazy! Who in his right mind would want this???"
"I understand your concern. But hear me out. The device will make the negative thoughts come true only when negative thoughts are present in the user's mind. Which means..."
"...no negative thoughts will come true if there are no negative thoughts in the user's mind to begin with."
"Bingo."
"Does the device work on positive thoughts too?"
"You mean if it can realize positive thoughts?"
"Yes."
"Give me some time. Perhaps in the iNoWorry 2."