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PSD.17:3 - Forces
| Force | Tension |
| Continuity and adaptation | Important judgements must survive transfer, while a receiving situation may justify different actions or support. |
| Recognition and plural practice | Shared standards can make good work visible; one prestigious school or decisive-looking result can suppress warranted alternatives and dissent. |
| Reach and receiving enactment | Publication and digital support can reach many people without showing that they can use the Method. |
| Local authority and distributed culture | A service can change its own arrangements; other practitioners and institutions may choose differently. |
| Useful judgement and incomplete evidence | A bounded, reversible change may be warranted before long-term retention or causation can be established. |
| Memory and protected information | Cases can preserve practical meaning, but source qualification, confidentiality and participant protection can limit what may be shared. |