The loop that feeds real-world evidence back to the researchers who design the mechanisms, privacy-preserving by design; tempo quarters to years; vehicle: Tapir, Data Collaboration.
Between the research system that produces validated knowledge and the practice system that could realise it there is no functioning feedback loop. Research studies organisations retrospectively and publishes; practitioners intervene without data on whether interventions work. The 17-year lag is not caused by slow readers. It is caused by missing infrastructure.
The research loop is that infrastructure: a boundary organisation whose boundary object is a privacy-preserving measurement platform. Institutions share knowledge, not data; raw data stays on-premises, only aggregated insights travel. Every participating organisation strengthens the evidence for all, which is a data network effect, and the Plural Constitution is what keeps that surplus with the players. See Data Collaboration.