He had some ideas about his future existence after the talk.

谈话之后，他对自己将来的生活有了一些想法。

youdao

If this is indeed the case, then the current situation should make us ponder our future existence.

如果事实确实如此，那么，现状应该促使我们对我们未来的生存进行思索了。

youdao

Indeed, a large population with limited resources casts a shadow on mankind's future existence in this planet.

实际上，剧增的人口和地球有限的资源之间的反差给人类未来的生存投上了阴影。

youdao

There will be to express the future existence or an anticipated existence of something.

here will be 来表示某些事物在将来会存在或在预期中会存在。

There is 课堂 - SpeakingMax英语口语达人

Why do we care more about future non-existence ? than past non-existence?

为什么我们更在乎未来不存在的事,而不是更在乎过去不存在的事？

耶鲁公开课 - 死亡课程节选

The task is likely to become even tougher: due to drastic budget cuts, the ICZN's own future existence is now severely threatened.

WSJ: Gigantea vs. Elephantina Isn't a Monster Movie��It's a Slow-Moving War of Words

Senior RAF officers saw the possible disappearance of the Tornado, which is the last vestige of the service's wartime Bomber Command, as a threat to the future existence of their service.

BBC: Why did coalition government change fighter plane plan?

We have spent far less on our physical and natural infrastructures than will be necessary for either to function in a way that is optimal for our present and future existence.

FORBES: A New Report on Climate Change: The World Bank Tries to Wake Us Up