1-2g1a In most cases, the new theory likely predicts the same outcome as the old ones, but that doesn’t mean we don’t need new theories because new theories give better explanations

1-1c6a1c The absence of evidence is not the evidence of absence
5-2 What counts cannot be counted
1-2g2 New theory in turn constrains what the low-level theories could be

1-2g1a1 Popper, Turing, Everett, Dawkins (then Deutsch himself) gave a better explanation as to why the prevailing theories were true after all (unfortunately, they have found themselves constantly on the defensive against obsolete theories)
1-2g1b What matters is the explanation, and not what you can see

1-2f1b3a1 The question is not whether anomalies happened in the past, but whether we have explanations for such anomalies.