索尼宣布光盘时代结束，玩家在GameStop兑换1000美元光盘
Gamer trades in $1,000 of physical discs at GameStop, days after Sony announces end of disc era
While some collectors may plan to hoard their physical media, one Columbus gamer decided to liquidate his collection
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力