Barry was not stupid. He knew very well that he could not casually consume something unknown, or there was no telling what the consequences might be. So, he was looking for only one kind of potion: the "Nutrient Solution" Richard had given him to drink before.
He remembered it clearly. It was a pale blue, slightly viscous liquid.
"This isn't it, this isn't it, this isn't it either..." Barry muttered to himself as he hurried past one cabinet after another. At last, he stopped in front of the fourth cabinet and saw a liquid exactly like the one in his memory.
"Blue, slightly viscous, exactly the same as what I drank before. The only difference is... the symbols on it..." Barry took the potion he had chosen from the cabinet and compared it with the empty potion tube from before. He found that the block-like symbols on the labels covering the Glass Tubes were not completely identical.
He could not make out the precise differences, but it was obvious that one set of block symbols was more complicated while the other was simpler.
"Are these really the same thing?"
"Could they look identical on the outside but have completely different effects?"
"Or are they indeed exactly the same, and the block symbols on the Glass Tubes are merely serial numbers?"
Barry kept thinking. After a moment, he tried to convince himself. "The odds of two different potions looking exactly alike... should be very low, right? So unless something unexpected happened, they have to be the same potion. Yes, they're the same potion."
Gathering his courage, Barry carefully removed the stopper from the Glass Tube. After turning his head to make sure no one was around, he brought it toward his mouth. He planned to take a small sip first and