【中文版】

“灰犀牛”这个词语比喻那些经常被提示却没有得到充分重视的大概率高风险事件。这个词语来源于金融领域，如今已经被广泛应用于各个领域，包括政治、经济、社会等。

“灰犀牛”并不是一个新的概念，它的出现可以追溯到20世纪90年代。当时，一些经济学家和金融专家开始注意到一些经常被提及但很少得到重视的高风险事件，如房地产泡沫、债务危机等。他们将这些事件比喻为“灰犀牛”，因为它们虽然不常发生，但一旦出现就会造成巨大的破坏。

“灰犀牛”事件通常具有以下特点：首先，它们是大概率事件，虽然不一定会经常发生，但一旦发生就会对整个系统造成巨大的冲击；其次，它们很难预测，因为它们的出现往往是在没有明显征兆的情况下；最后，一旦它们发生，采取措施应对的难度也很大。

在当今社会，“灰犀牛”事件层出不穷，如气候变化、网络安全、贫富差距扩大等。这些事件对人类社会和自然环境都带来了巨大的挑战。因此，我们需要采取更加积极的态度来预防和应对“灰犀牛”事件，避免它们给我们的生活和社会带来更大的损失。

【英文版】

The term "gray rhino" is used to比喻 those high-risk events that are often mentioned but rarely taken seriously, despite their high probability of occurrence. The term originated in the field of finance and has now been widely used in politics, economy, society and other fields.

"Gray rhino" is not a new concept. Its emergence can be traced back to the 1990s. At that time, some economists and financial experts began to notice some high-risk events that were often mentioned but rarely taken seriously, such as real estate bubbles, debt crises, etc. They compared these events to "gray rhinos" because although they do not often occur, once they appear, they will cause great damage to the whole system.

Gray rhinoceros events usually have the following characteristics: firstly, they are high-probability events, although not necessarily frequent, but once they occur, they will have a huge impact on the entire system; secondly, they are difficult to predict because their emergence often comes without obvious warning signs; finally, once they happen, it is also difficult to take measures to respond.

In today's society, gray rhinoceros events emerge one after another, such as climate change, network security, the widening gap between the rich and the poor, etc. These events have brought enormous challenges to human society and the natural environment. Therefore, we need to take a more proactive approach to prevent and respond to gray rhinoceros events in order to avoid them causing greater losses to our lives and society.