The Future Is Ours To See 🔮

Whatever will be will be.

By 2037, a total solar eclipse will sweep across Australia and New Zealand, while astronomers anticipate the ghostly reappearance of Supernova Requiem—a distant stellar explosion whose light, bent by gravitational lensing, will reach us again after a long cosmic delay. In that same year, many wonder if humanity might achieve its own form of "requiem" for biological death: mind uploading, the idea of scanning and emulating a human brain in silicon to preserve consciousness indefinitely.

Mind uploading, often called whole brain emulation (WBE), involves creating a detailed computational model of a brain's structure and function—every neuron, synapse, and dynamic process—so that the resulting software behaves like the original mind. The classic reference remains the 2008 technical report Whole Brain Emulation: A Roadmap by Anders Sandberg and Nick Bostrom (Future of Humanity Institute, Oxford). It outlined the technical milestones needed: high-resolution brain scanning (e.g., via electron microscopy for connectomics), understanding the brain's computational level, and sufficient hardware to run the simulation in real time.

Read the full 2008 roadmap here: PDF via Gwern.net
(or the Oxford archive version: Oxford Research Archive)

Fast-forward to 2025–2026: Progress is real but incremental. Connectomics has delivered full brain maps of simpler organisms like the fruit fly (~140,000 neurons) and detailed reconstructions of small mammalian cortical volumes. Brain-computer interfaces, such as Neuralink's implants, have enabled paralyzed individuals to control computers, type, and even play games using thought alone—with plans for high-volume production and more automated surgery in 2026.

→ Follow the latest Neuralink updates directly: https://neuralink.com/updates/

The most comprehensive recent assessment is the State of Brain Emulation Report 2025 (arXiv preprint by Niccolò Zanichelli, Maximilian Schons, et al.), which reassesses the field since the 2008 roadmap. It concludes that full human WBE remains 30–40 years away at minimum—pointing to roughly 2055–2065 under optimistic assumptions of continued exponential growth in scanning tech, computing power, and neuroscience insights.

Read the full State of Brain Emulation Report 2025 here: arXiv:2510.15745
(Direct PDF: Download PDF)
(Project site with summary and figures: brainemulation.mxschons.com)

Optimistic voices like Ray Kurzweil have long targeted the 2030s–2045 for mind uploading tied to the technological singularity, but many neuroscientists view such timelines as overly aggressive. A 2025 survey of neuroscientists gave roughly a 40% probability that memories could be extracted from preserved brains and that WBE might eventually enable restoration of consciousness—non-zero, but hardly a sure thing.

The Technical Path (in Simplified Steps)

1. Scan — Destructive or non-destructive mapping of the brain's ~86 billion neurons and trillions of synapses at sufficient resolution (including dynamic states, not just static structure).
2. Translate — Interpret the data into a functional model, accounting for neuromodulators, plasticity, and possibly even quantum effects debated by some (e.g., Penrose-Hameroff ideas).
3. Emulate — Run the model on hardware powerful enough to match biological timescales.

Challenges abound: We still don't fully understand how the brain generates subjective experience (the "hard problem of consciousness"). Simulating every biological quirk could require enormous compute, and it's unclear whether a digital copy would truly be you or merely a convincing replica.

Philosophical and Ethical Knots

If uploading works, does the original "you" survive, or does the process create a new conscious entity while the biological brain dies? Gradual replacement (neuron-by-neuron substitution) is often argued to preserve identity better than destructive scanning. Ethical questions multiply: rights of digital minds, inequality (who gets to upload?), psychological impacts of digital existence, and whether consciousness can exist on non-biological substrates at all.

Organizations like the Carboncopies Foundation continue advocating for WBE research, emphasizing that accurate structural and functional reconstruction could, in principle, reproduce both cognition and subjective experience. Yet skeptics argue we may never bridge the gap between simulation and lived consciousness.

→ Explore the Carboncopies Foundation: https://carboncopies.org/

By 2037?

Don't expect routine mind uploading. Precursors—advanced BCIs for medical restoration, partial neural simulations, and deeper connectomics—will likely be advancing rapidly, fueled by AI and computing gains. The real "event" of 2037 may be continued debate and incremental breakthroughs rather than digital immortality. The supernova's delayed light reminds us: some phenomena take time, bending around massive obstacles.

Learn more about Supernova Requiem's predicted 2037 reappearance:
Space.com Coverage | NASA/STScI Announcement

In the end, consciousness uploading forces us to confront what makes us human. Is the self a pattern of information that can be copied, or something irreducibly tied to our wetware biology? The coming decades of neuroscience and philosophy will decide.

What do you think—exciting frontier or hubris? Share your take in the comments.