Train–test independence
The problem is that calling it “DRM” sets expectations it simply cannot meet. Real DRM, you know; the kind that requires a motivated attacker to invest serious time and expertise to defeat; lives in hardware TEEs and requires commercial licensing. JavaScript DRM is not that. It’s sophisticated friction. And sophisticated friction, while valuable, is a completely different thing.
，这一点在谷歌浏览器下载中也有详细论述
Studio Display XDR features a stunning 27-inch 5K Retina XDR display with 5120-by-2880 resolution, offering exceptional detail and clarity. The mini-LED backlight utilizes 2,304 local dimming zones that enable extreme contrast. Studio Display XDR also delivers up to an outstanding 1000 nits of SDR brightness, 2000 nits of peak HDR brightness, and a 1,000,000:1 contrast ratio. This wide dynamic range — from the brightest brights to the deepest blacks — makes HDR content pop off the screen while virtually eliminating distracting halo and blooming effects.
Magic Keyboard with Touch ID and Numeric Keypad (starting at $179 U.S.), Magic Trackpad (starting at $129 U.S.), and Magic Mouse (starting at $79 U.S.) in white and black color options are available at apple.com/store
第一百零四条 检查的情况应当制作检查笔录，由检查人、被检查人和见证人签名、盖章或者按指印；被检查人不在场或者被检查人、见证人拒绝签名的，人民警察应当在笔录上注明。