Concert hall acoustic reputations often improve with age regardless of design merit.

Evidence

Over time, however, opinions gradually grew more favorable, until today Symphony Hall is thought to be one of the finest concert halls anywhere, and certainly one of the top two or three venues in the United States. At least when it comes to acoustics, and barring obvious disasters, the rule seems to be: wait 10 years. — Eric J. Heller, Why You Hear What You Hear- An…, 2575

Categorization

• SEED: Article angle: the ‘wait 10 years’ heuristic and how audiences and critics adapt to acoustic spaces.
• APHORISMS: A practical, slightly wry rule for evaluating built spaces: barring disasters, judgment takes time.