Our muscles will atrophy as we climb the Kardashev Scale
As a thought experiment on the Kardashev scale and far-future civilizations, commenters challenge the idea that advancing technology will inevitably leave humans physically weak and immobile. Many argue that biomedical advances—like exercise-mimicking drugs, genetic engineering, and hormonal therapies—plus persistent cultural preferences for fitness and attractiveness make widespread muscle atrophy unlikely, and note that modern strength athletes already far exceed most historical baselines. Others broaden the concern to “mental atrophy” from over-reliance on AI, question simplistic extrapolations about the future of bodies and minds, and point out that humanity may speciate, upload, or otherwise change so radically that today’s assumptions about physical frailty no longer apply.
Premise and Overall Reaction
- Many commenters find the “muscles will atrophy as we climb the Kardashev scale” premise simplistic or “silly.”
- Core criticism: it linearly extrapolates from current trends, ignoring biology, culture, and technology co-evolving in messy ways.
- Others engage with it as a fun thought experiment about trade‑offs between efficiency, embodiment, and human desire.
Strength: Past vs Present
- Several argue pre‑modern laborers were often smaller, weaker, and malnourished; heavy work coexisted with starvation, parasites, and disease.
- Modern people can be stronger due to nutrition, medicine, and deliberate strength training, even if average daily activity is lower.
- Others note the obesity epidemic and declining fitness (e.g., military recruitment issues) as counter‑evidence of general robustness.
Biotech, Drugs, and “Exercise in a Pill”
- Multiple threads discuss GLP‑1 agonists, exercise mimetic drugs, myostatin inhibitors, and testosterone/TRT.
- Some are optimistic that exercise and atrophy will be solved pharmacologically or genetically long before interstellar travel.
- Others are skeptical: long‑term side effects, systemic impacts (heart, tendons, mood, fertility), and “no free lunch” concerns are emphasized.
- Distinction is made between supraphysiologic bodybuilding doses and therapeutic replacement levels.
Body, Mind, and Future Civilizations
- Strong theme: physical fitness and mental health/cognition are tightly linked; a “brain in a jar” future could be psychologically harmful.
- Several expect biological or cyborg futures (genetic upgrades, exosuits, engineered bodies) rather than pure uploads.
- Others speculate about branching human lineages (biological, robotic, uploaded), off‑world colonies, and civilizational splintering.
- Some criticize the Kardashev scale itself as flashy but not very useful; others see it as sci‑fi jargon or “in‑group signaling.”
Culture, Choice, and Desire
- Many point out that people will still want attractive, capable bodies for sex, aesthetics, safety, and pleasure of movement, regardless of economic necessity.
- Office culture and long hours are blamed for sedentary lifestyles; yet some note that even a minute a day of simple exercise can noticeably improve strength.
- A few worry more about “mental muscle” atrophy from AI tools than physical atrophy from automation.