Meta Current on Instagram: "Greek letters like alpha, beta, delta, epsilon, and zeta aren’t just symbols — they’re the alphabet that scientists use to compress entire ideas into tiny marks, the way a mechanic uses specific tools instead of whole machines; each letter carries its own job, from alpha marking the first variable in a model to delta tracking change like a before-and-after photo, while epsilon represents “the tiniest possible amount” the way a hairline crack still changes a wall, and