This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

As we age, we forget most of what we’ve experienced, yet there’s still undeniable continuity: At 30, or 50, or 70, you will still be you. 

To preserve that elusive continuity of self, some far-thinking technologists are exploring ways to keep the brain going, even beyond death. Their ideas range from freezing brains in liquid nitrogen to augmenting living ones and uploading our memories to the cloud.

Here are six possible paths for keeping your mind going, and how feasible they might be.

This story is from the Impossible edition of our print magazine. Subscribe now to get every issue as soon as it lands.

Anthropic recently released a report arguing that a powerful new model released by the Chinese company Z.ai, poses a major cyberattack risk. Its core concern was that it is freely available for anyone to download and modify.

The warning was the latest flashpoint in the debate over open frontier AI models. Critics warn that bad actors can misuse them, while supporters argue they prevent a handful of companies from controlling the technology. The debate, however, is more complicated than it seems.

This is our latest story to become an MIT Technology Review Narrated podcast, which we publish each week on Spotify and Apple Podcasts . Just navigate to MIT Technology Review Narrated on either platform, and follow us to get all our new content as it’s released.

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