Is a Brain Upload Possible? Max Tegmark on Whole Brain Emulation

TL;DR

Max Tegmark argues that brain uploading is possible in principle, but determining whether an upload has genuine subjective experience remains a crucial unresolved challenge. The brain contains about 100 terabytes of information, compared with two gigabytes for a person’s DNA code. He suggests advanced artificial general intelligence could eventually help uncover how uploading works, while warning that a humanlike robot might merely imitate its source. Read on for the distinction that matters most.

Transcript

maybe intelligence and consciousness is not something mysterious that can only exist in meat blobs but actually maybe it's all about information processing we now know that you know it only takes two gigabytes to store your entire DNA DNA code like a typical movie download there's not no big deal and it takes about a hundred terabytes to store all ... Read More

Key Insights

• 💁 Intelligence and consciousness may be related to information processing rather than being exclusive to biological entities.
• 🤖 Uploading human consciousness into robots is theoretically possible but understanding subjective experience remains a challenge.
• 🧠 The storage requirements for DNA code and brain information highlight the complexity of human intelligence.
• 🏛️ Building artificial intelligence may be easier than unraveling the mysteries of human intelligence and consciousness.
• 🤨 The ability to transfer consciousness raises ethical questions regarding the authenticity of subjective experiences.
• 🧑‍🔬 Scientists need to determine whether uploaded consciousness will possess true subjective experience or function as mindless imitations.
• 🛰️ The future development of artificial general intelligence may provide opportunities to explore consciousness uploading.

Questions & Answers

Q: Is it possible to upload human consciousness into a robot?

Max Tegmark argues that it is absolutely possible in principle because humans consist of the same kinds of quarks and electrons as other matter. However, he does not claim that scientists currently know how to perform an upload or guarantee that it would have a subjective experience.

Q: How much information would a whole-brain upload need to store?

Tegmark says storing all the information in a human brain would require about 100 terabytes. By comparison, he says a person’s entire DNA code takes only two gigabytes to store.

Q: Why might consciousness exist outside a biological brain?

Tegmark suggests intelligence and consciousness may depend on information processing rather than something that can exist only in biological “meat blobs.” From that perspective, a nonbiological system could potentially support the relevant processes.

Q: Could brain uploading become possible within our lifetime?

Tegmark does not say that scientists will necessarily work out brain uploading within our lifetime. He says understanding how the brain produces intelligence may be harder than building artificial intelligence that can perform the same tasks.

Q: How could artificial general intelligence help with brain uploading?

Tegmark suggests that if artificial general intelligence or superintelligence is successfully built, there would be no particular reason it could not be used to investigate uploading. He presents this as a possibility rather than a settled prediction.

Q: Why does Tegmark compare brain research with mechanical birds and airplanes?

He uses the comparison to argue that reproducing a capability can be easier than reconstructing the biological mechanism behind it. He notes that a successful mechanical bird arrived about 100 years after the Wright brothers’ airplane.

Q: What definition of consciousness does Tegmark favor?

Tegmark favors David Chalmers’s definition of consciousness as subjective experience. He describes this in terms of experiences such as colors, sounds, and emotions, then asks whether a self-driving car experiences anything.

Q: What is the central risk of uploading a person into a robot?

A robot could look and talk like the person while remaining a “mindless zombie” without subjective experience. Tegmark warns that someone should understand this distinction before switching off their biological body, because an imitation would not ensure that their conscious experience continues.

Summary & Key Takeaways

• Intelligence and consciousness may be tied to information processing, leading to the possibility of uploading human consciousness into robots.

• While storing DNA code requires only 2 gigabytes, the information in the human brain requires about 100 terabytes.

• Building artificial intelligence may be easier than understanding the complexities of human intelligence and consciousness.