Group 1 - The concept of "adaptation" is crucial for both survival in nature and success in business, emphasizing that those who can adapt to environmental changes are more likely to thrive [1] - Historical examples such as Nokia, BlackBerry, and Kodak illustrate how failure to adapt to market changes can lead to a company's decline [1] - Traditional automotive companies face similar challenges; if they do not adapt to the rise of electric vehicles, they risk being eliminated or merged [1] Group 2 - In the stock market, the definition of blue-chip stocks evolves over time, with companies like General Motors once being considered blue-chip, while now Nvidia and Apple are more prominent [2] - The rise of new industries, such as electric vehicles, can overshadow previously dominant sectors like the liquor industry, indicating the need for companies to adapt to market trends [2] - Investors must continuously reassess their understanding of blue-chip stocks as companies struggle to maintain their status in a changing economic landscape [2] Group 3 - Investment methods also require constant adaptation; both technical and fundamental analyses must evolve to remain effective [3] - Successful investors are those who learn and adjust their strategies based on market changes, rather than sticking rigidly to one approach [3] - The necessity for investors to regularly evaluate and adjust their strategies is essential for achieving better investment outcomes [3]

很难想象，那个时候，接电话主要是靠腿。 我不知道在别的城市大家是怎么叫的，在上海，我们叫"传呼电话"。 楼下忽然响起那种便携式电喇叭的几声啸叫——整幢楼的居民就开始竖起耳朵：知道有电话了。 "X号X零X，XXX，电话～～～"爷叔用他特有的嗓音在楼下喊。 然后我爸或我妈就打开窗，探出头去："噢～晓得了，谢谢噢～来了～～～" 然后开始穿外套，换鞋，有时候天黑了，还要带个手电，出门去接电话。 那时候的家，离弄堂口有一点距离的，步行大概需要五分钟，不是很方便。但在那时候，大家都知道打电话肯定是有事儿的，没人会用传呼电话聊家常， 所以有电话肯定是要去接的。 这种接传呼电话，放到平时问题也不大，但遇到刮风下雨天，或者酷暑严寒天，其实还是很不方便的。 在弄堂口的"门房间"，一块支出小窗外的木板，上面放着四五台电话机——这就是当初上海老百姓们都熟悉的"公用电话亭"了。 这个电话亭除了向往来的行人提供拨打公用电话的服务外，还有一个主要功能：给弄堂里的居民提供"传呼电话"的服务。 所谓"传呼电话"，就是比如A要打电话找B，A就打到B家弄堂口的"公用电话亭"，说要找几号几零几的B，门房间的爷叔或阿姨就会请他别挂，然后去到 他要找的 ...