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CMP.9:3 - Forces
| Force | What must be reconciled |
|---|
| Accessible randomness and target law | The easiest draws may have different probabilities from those the task needs. |
| Broad coverage and informative samples | Oversampling useful regions helps only with an appropriate correction and retained support. |
| Cheap transitions and useful information | Correlated steps may be inexpensive but add little information. |
| Unknown stream length and fixed storage | A representative sample must remain valid as unseen records arrive. |
| Adaptive effort and stated error | Stopping according to observed values changes some uncertainty guarantees. |
| Reproducibility and independent repetitions | Reusing a seed repeats a calculation; it does not create another independent draw. |