100 Research Cohorts on Immortality in the Year 2100

Below are 100 hypothetical research cohorts studying “immortals” (biological or functional immortality / extreme longevity) in the year 2100, spanning biology, technology, society, and philosophy. Each cohort represents a distinct long-term research population.


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Biology & Biomedicine



  1. Individuals with fully self-renewing telomeres
  2. Individuals using 8th-generation CRISPR-X gene editing
  3. Individuals with 100% cellular replacement mechanisms
  4. Individuals without cellular aging
  5. Individuals with permanently adaptive immune systems
  6. Individuals with periodic internal organ regeneration
  7. Individuals with zero DNA mutation accumulation
  8. Individuals with stable, unchanging microbiomes
  9. Individuals who can control apoptosis at will
  10. Individuals free from chronic inflammation






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Technology–Biology Hybrids



  1. Individuals with permanent circulating nanobots
  2. Individuals with dual brain–AI systems
  3. Individuals with regular consciousness backups
  4. Individuals with biological bodies supported by mechanical frames
  5. Individuals replacing tissue with synthetic living materials
  6. Individuals running personal biological operating systems
  7. Individuals using metabolic-control implants
  8. Individuals with self-healing skin
  9. Individuals with disease prediction sensors 10 years in advance
  10. Individuals who no longer need sleep






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Consciousness & Neuroscience



  1. Individuals with non-degrading memory
  2. Individuals capable of selective memory erasure
  3. Individuals with multi-layered consciousness
  4. Individuals with distributed (cloud-linked) brains
  5. Individuals without emotional degradation
  6. Individuals in a permanent meditative state
  7. Individuals immune to PTSD
  8. Individuals capable of psychological reset
  9. Individuals with parallel consciousness copies
  10. Individuals living multiple “lifetimes” within one body






🧑‍🤝‍🧑 

Society & Demographics



  1. Immortals born before the year 2000
  2. Immortals born after 2050
  3. Immortals from the ultra-wealthy class
  4. Immortals from the working class
  5. Immortals living alone for over 200 years
  6. Immortals living in closed communities
  7. Immortals with finite-family structures
  8. Immortals who choose not to reproduce
  9. Immortals holding leadership roles for over 100 years
  10. Immortals not participating in politics






⚖️ 

Law & Ethics



  1. Immortals with full citizenship rights
  2. Immortals subject to reproductive restrictions
  3. Immortals serving prison sentences longer than 200 years
  4. Immortals who choose to end their existence
  5. Immortals stripped of immortality rights
  6. Immortals participating in long-term judicial systems
  7. Immortals taxed based on lifespan
  8. Immortals denied permanent ownership rights
  9. Immortals living outside nation-state systems
  10. Immortals under special legal protection






🌍 

Environment & Space



  1. Immortals living off Earth
  2. Immortals settled on Mars for over 100 years
  3. Immortals living underwater
  4. Immortals adapted to extreme climates
  5. Immortals not requiring oxygen
  6. Immortals living in simulated environments
  7. Immortals engaged in interstellar travel
  8. Immortals undergoing centuries-long hibernation
  9. Immortals existing in virtual worlds
  10. Immortals without physical bodies






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Philosophy & Spirituality



  1. Immortals adhering to nihilism
  2. Immortals practicing Buddhist philosophy
  3. Immortals following Stoicism
  4. Immortals experiencing loss of life meaning
  5. Immortals reconstructing identity repeatedly
  6. Immortals without a concept of time
  7. Immortals viewing death as a choice
  8. Immortals living as ordinary humans
  9. Immortals emotionally detached
  10. Immortals aligned with transhumanism






📊 

Economics & Labor



  1. Immortals practicing one profession for over 150 years
  2. Immortals changing careers every 20 years
  3. Immortals not participating in labor
  4. Immortals engaged in long-term research
  5. Immortals accumulating unlimited wealth
  6. Immortals under ownership limitations
  7. Immortals as enduring artists
  8. Immortals serving as century-long educators
  9. Immortals managing AI-driven economies
  10. Immortals living on universal basic income






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Control Groups & Exceptions



  1. Semi-immortals (lifespans around 300 years)
  2. Immortals with slow aging
  3. Immortals with periodic memory loss
  4. Immortals affected by technological failures
  5. Immortals unable to cure novel diseases
  6. Immortals socially isolated
  7. Immortals refusing upgrades
  8. Immortals reverting to mortal life
  9. Immortals existing solely as data
  10. Immortals with indeterminate lifespans






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Future & Extreme Scenarios



  1. The last immortal of humanity
  2. Immortals living after human extinction
  3. Immortals recreating humanity
  4. Immortals merging into a collective consciousness
  5. Immortals losing sensory perception
  6. Immortals becoming planetary-scale entities
  7. Immortals transcending space–time
  8. Immortals without individual identity
  9. Immortals erased from history
  10. Immortals witnessing the “end of the universe”


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