Growth refers to many different topics: body, brain, business, cancer, climate, economy, ethics, inflation, politics, population, and the Universe. We use many different adjectives to describe growth, like: absolute, actual, historical, marginal, projected, relative. A decline is even negative growth.
Nowadays, growth causes ethical discussions (ie, good versus bad).
Our saying what goes up must come down relates to gravity, a fundamental force in nature and the Universe. However, it’s still unclear if an expanding Universe might defy gravity and continue its (eternal?) growth. Moreover, it’s (very) hard to imagine a contracting Universe a.k.a. Big Crunch.
Growth in inflation is deceptive. Given our relative focus (eg, month-over-month, year-over-year), inflation will automatically decline following mathematics. Tracking an individual item, like milk, gives a better perspective: c.1.30 (2019), 1.42 (2021), 1.84 (2022), 1.73, 1.62, and 1.52 (2023-08).
Growth might be an unknown fundamental force in nature, apart from the known four forces (eg, gravity, electromagnetism). If growth would be a 5th fundamental force then it would explain a mystery in Evolution: how did unicellular organisms (eg, bacteria) evolve into multicellular organisms like us?
“Growth is never by mere chance; it is the result of forces working together.”A quote by James Cash Penney (1875-1971), an “American businessman  who founded the JCPenney stores in 1902″
Note: all markings (bold, italic, underlining) by LO unless in quotes or stated otherwise.