The digitized mind
A huge sci-fi trope is the ability to encode your consciousness into the cloud, a hard drive, or another brain. Most recently showing up in Netflix’s Altered Carbon, this would be the secret to our immortality and is the holy grail of the biotech industry.
Sadly, it seems impossible. According to experts, we don’t have a complete picture of what parts of the brain lend themselves to thinking, personality, sensations, etc. There’s all these minute, quantum phenomena that we can’t replicate or capture. Plus there’s no way to effectively take every single piece of info in your brain, and dump it elsewhere.