The Dsup Toxicity Barrier — Why Space-Adaptation Stays Held
Open questionA tardigrade protein gave human cells roughly 40% more X-ray tolerance, but in whole animals it caused broad gene suppression and severe movement problems — systemic toxicity — and no authorized human germline edit exists anywhere. The entry is an explicit guardrail: engineering humans for space remains an open, unendorsed possibility rather than a trajectory, and the jump from somatic treatments to heritable modification is not a finding.
The engine's record — word for word
[Report #107 — 2026 Space Race] Transgenic tardigrade Dsup gave human HEK293 cells ~40% greater X-ray tolerance (DNA damage roughly halved) but produced non-specific transcriptional repression and severe locomotor reduction in Drosophila (systemic toxicity). MSTN inhibition ('mighty mice'), ACVR2B/Fc decoy, and YN41 are somatic/pharmacological only; no authorized human germline edit exists. Therefore the space_adapted_genome / grey-encoding candidate stays HELD-not-endorsed and the somatic→germline transition is NOT a finding. This divergence is the explicit guardrail against any germline-inevitability lean. Apex held; manifestation arm b/d.
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