权衡：你的产品要的是体验，还是便利？：why some things catch on, and other don't why some things catch on, and other don't why some things catch on, and others don't Trade-off :：why some things catch on, and others don't / 取舍：高质感vs.超便利，找到核心定位，才能赢得市场：why some things catch on, and others don't why some things catch on, and others don't /