《Geek时间》-最赚钱的行业里，都是学这个专业出身的？

smaller pocket是指代什么呀，感觉不是直译成小口袋 ，原句是：It's something that kind of started in like the last decade or so. It's probably like in more smaller pockets, maybe the decade before that，是指发达的地区嘛