Pool party on the sun
If the Sun’s stellar remnant were slowly losing mass (via proton decay) and reached a point where its surface gravity was exactly 1g (9.81 m/s²), let’s carefully explore what this would look like and feel like:
① Calculating the Size and Conditions:
② Properties of this Stellar Remnant:
Physical Dimensions:
• Radius: ~10,000 km (about 1.57 times Earth’s radius)
• Diameter: ~20,000 km (compared to Earth’s ~12,742 km)
• Surface area: Larger than Earth, about 2.46 times Earth’s area.
Composition and Surface Conditions:
• Almost entirely crystalline carbon (essentially a planet-sized diamond).
• Surface temperature extremely low, close to absolute zero (~a few degrees Kelvin above absolute zero), because all residual heat would have dissipated long ago.
• Completely dark, reflecting no visible sunlight (as no nearby stars or illumination sources would likely remain by this point).
③ Surface Conditions (What it Would Feel Like):
Gravity:
• Precisely Earth-like gravity (1g). You could walk, run, and move exactly as you would on Earth in terms of gravity alone.
Surface Material:
• The surface would be solid crystalline carbon, essentially diamond-like, extremely hard and rigid.
• Surface would likely be extremely smooth at large scales (due to gravitational flattening over unimaginably long times), but could have microscopic irregularities formed by proton-decay-driven erosion.
Atmosphere and Pressure:
• No atmosphere whatsoever, as gases would have long ago escaped due to low mass, proton decay, and cosmic background radiation pressure.
• No atmospheric pressure, so a spacesuit is absolutely necessary.
Temperature and Environment:
• Surface temperature near absolute zero (~2–3 K). Any heat from your body or equipment would rapidly radiate into space.
• Darker than any environment you’ve experienced; no stars would likely be visible, as by the proton-decay era (~10³⁶ years in the future), nearly all stars have burned out. The universe would be a vast, pitch-black, cold expanse illuminated only faintly by incredibly distant, sparse photons from black hole evaporation and other faint radiation sources.
④ Experience of Standing on this Remnant:
• Standing would feel physically identical in terms of gravity to standing on Earth.
• Movement would feel “normal,” but entirely silent and sterile. Every footstep would transmit vibrations clearly through the rigid crystal surface.
• Without air resistance, movement would feel eerily frictionless apart from your suit interacting with the surface. Jumping and landing would feel exactly like Earth, but without sound, wind, or atmosphere.
• The ground would be incredibly rigid; harder than any surface experienced on Earth, as diamond has immense hardness and rigidity.
• Because of no atmospheric haze, visibility would be theoretically infinite—limited only by the faintness of the distant universe.
⑤ Stability and Future Evolution:
• At this scale, the stellar remnant would remain stable for an immense time (trillions of trillions of years more).
• Proton decay would continue slowly, eventually causing the body to shrink further. Over immense timescales (far exceeding the current age of the universe), gravity would slowly decrease, and the remnant would gradually become smaller.
🌓 What Would the Sky Look Like?
• Pitch black: The universe at ~10³⁶ years would be nearly devoid of visible starlight. Stars have long died, galaxies dispersed, and photons are extremely sparse.
• A tiny, faint, scattered photon might occasionally pass by from distant black hole evaporation, but otherwise utter darkness.
🌌 Emotional/Subjective Experience:
Standing on this remnant, you’d feel like you’re on a perfectly smooth, diamond-like, black world floating silently in eternal darkness. Gravity feels Earth-like, but the environment is unimaginably alien:
• Complete silence
• Absolute darkness
• Extreme cold
• Perfect rigidity of surface
• Infinite loneliness, given the unimaginably deep future of cosmic isolation.
✅ Conclusion:
At exactly 1g, the Sun’s remnant would be a planet-sized, diamond-crystal sphere about 10,000 km in radius. You could walk and move normally, but conditions would otherwise be completely alien—utterly silent, cold, and dark beyond any human experience.
This strange, far-future scenario is theoretically plausible given sufficient cosmological time and proton decay, providing a remarkable cosmic perspective on the far distant fate of our Sun’s remains.
🌞 Setting the Scene: Pool Party on the Stellar Remnant
After countless eons, proton decay has turned the Sun’s remnant into a stable, planet-sized diamond sphere (~10,000 km radius) with exactly 1g surface gravity. While naturally cold, dark, and atmosphereless, nothing fundamentally prevents human intervention from making it comfortable:
① Heating the Surface with Nuclear Reactors
• Surface Heating:
To achieve Earth-like comfortable temperatures (~20–30°C), you’d place nuclear reactors across or beneath the diamond surface, distributing heat evenly. Diamond’s extreme thermal conductivity makes this easy, spreading warmth uniformly.
• Power Requirements:
The immense insulation of vacuum around you helps retain warmth. Reactors don’t need constant fuel injection at massive rates, just steady heat output to maintain surface warmth.
• Stable Temperature:
With controlled heating, the surface would become comfortably warm, turning this dead, frozen sphere into an inviting, pleasantly warm environment.
② Introducing an Atmosphere
• Composition:
Add a nitrogen/oxygen mixture similar to Earth’s atmosphere (78% N₂, 21% O₂, ~1% Ar, CO₂, etc.).
• Atmospheric Pressure:
Achieving Earth-like pressure (1 atm = 101 kPa) requires roughly the same amount of atmosphere Earth holds. Given our remnant’s slightly larger size (radius ~10,000 km), the gravity is Earth-like, meaning your atmosphere remains nicely bound by gravity.
Good news: Your atmosphere won’t escape significantly, given Earth-like gravity.
• Weather Conditions:
Initially stable and windless; you could introduce slight variations in heating to create gentle breezes, mild weather, and even clouds or rain if desired.
③ A Portable Pool on the Sun’s Former Surface
• With a comfortable atmosphere and warmth, a portable pool is entirely practical.
• Water would behave exactly as on Earth, forming a stable surface at Earth-like gravity.
• Enjoy swimming, splashing, and floating exactly as you would at a terrestrial pool party.
④ How It Would Look and Feel
• Ground beneath your feet:
Solid, crystal-clear diamond with warmth radiating gently. Likely reflective, giving your pool and surroundings a dazzling, sparkling appearance.
• Sky above:
Deep blue sky during your artificial “day,” thanks to Rayleigh scattering from your artificial atmosphere.
• Sunlight simulation:
You could install bright artificial illumination—perhaps enormous orbiting mirrors or fusion-powered light sources—to simulate sunlight, giving you daylight conditions indefinitely.
• Nighttime Scenario:
Dim artificial stars or pleasant lights overhead, creating a beautiful, gentle nighttime environment whenever desired.
⑤ The Experience: A Truly Unique Pool Party
Your guests would experience:
• Earth-like gravity, familiar and comfortable.
• Perfect temperature control (warm and inviting).
• Fresh air, blue skies, gentle breezes.
• Crystal-clear, dazzlingly reflective diamond ground.
• Warm swimming pool, exactly like Earth’s—but on a planet-sized diamond remnant.
• The surreal awareness that you’re swimming, relaxing, and socializing on what was once the Sun itself, a star that had warmed Earth’s oceans billions upon billions of years before.
🎉 Conclusion: Completely Possible and Delightfully Fun!
Your imaginative scenario isn’t just science fiction—given enough technology and cosmic time, it’s genuinely plausible. Setting up such a comfortable environment on the cooled, proton-decayed stellar remnant is scientifically sound. You’d indeed have a cozy, atmospheric, and luxurious pool party on what used to be our Sun!
Now that’s a party that literally outshines all others! 🌞🍹✨
- GPT 4.5
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