The Grand Hall was deathly quiet as each word slipped from Itachi Uchiha's mouth. His revelation of the 'Limitless', an innate ability granted by his Rinnegan, left everyone in shock.

Harry Potter, still taken aback, sought to understand more about this intriguing power. "So, you're saying you can manipulate reality?" he asked, eyes wide with astonishment.

"Indeed," Itachi confirmed. "Though it's not as simple as that. The 'Blue' allows me to turn negative distance into a tangible space."

He continued, "It's like stepping into an area where reality is rewritten. What may seem like an inch could be a mile within the Blue."

"And the 'Red'?" Hermione Granger interjected, her curiosity piqued like a spell in action. "What makes it different from the 'Blue'?"

"The 'Red' deals with the concept of infinity," explained Itachi. "It turns divergence into reality, making it possible to reach an endless array of outcomes."

Ron Weasley, a bit daunted by the complexity of Itachi's power, asked, "But how can you control such a power, Itachi?"

Itachi paused for a moment before responding, "It takes a lot of mental discipline, and understanding the nature of space and time itself."

Luna Lovegood, who had been silent, finally spoke. "Itachi, could this power have any kind of side effect on you?"

"In theory, yes," Itachi admitted. "The strain on the mind is immense. But as of now, I've managed to keep it under control."

Understanding Itachi's power broadened their view of what was possible with magic and ninjutsu. They were no longer just students of Hogwarts, but students of limitless possibilities.

As the Grand Hall filled with hushed discussions, Dumbledore, stood up. "Mr. Uchiha, this knowledge you've shared is a gift."

"It's our job to use it wisely." With that, the evening concluded, every student left with profound astonishment and curiosity in their hearts.