过去的软件行业，其实有一种很典型的“匠人红利”。谁代码写得更优雅，谁框架更熟，谁对某个领域理解更深，谁就更有价值。 技术壁垒主要建立在熟练度和经验积累之上。
The optimization treadmill
，这一点在同城约会中也有详细论述
As usual, though, the Ultra model is where Samsung is pushing the envelope the furthest. It gains the most advanced camera system, faster wired and wireless charging and the company’s new built-in Privacy Display tech. Pre-orders are available now, with official sales starting on March 11. If you’re trying to decide which model makes the most sense for your needs (and budget), here’s how the three devices stack up on paper.，更多细节参见同城约会
Нина Ташевская (Редактор отдела «Среда обитания»)
What if we had something that was: