「イミテーションジュエリー」→ 「模倣品」や「偽物」というネガティブな印象を持たれがち。 @MarkusMeskanen: because the item is immutable, and if you mutated it in place you could potentially not specialise it inside a subclass. This was spotted by Khushal Bherwani who posted an case in point on X, I'm able to copy it, Here's my GIF of it in action: https://gurgaonresidentialproperty.design.blog/2025/09/12/bptp-gaia-residences-sector-102-gurgaon-dwarka-expressway/