Analysis
Jared Isaacman's tweet reflects that all Inspiration4 participants received significant training and participated in scientific experiments, which is accurate. However, the claim that they operated the spacecraft is misleading; the vehicle was piloted by SpaceX professionals, and the civilians performed limited operational tasks under supervision.
Background
Inspiration4 was the first all‑civilian orbital mission launched by SpaceX in September 2021. The four members completed weeks of training on safety, microgravity, and scientific protocols, but the actual flight controls were handled by SpaceX flight controllers and the capsule's automated systems. Crew members also carried out research payloads during the mission.
Verdict summary
The crew did undergo extensive training and conducted research, but they did not operate the spacecraft themselves.