If I've learned anything from these decades of working on these problems, it's this: just because somebody tells you something and they say it with confidence, just because they say it with lots of detail, just because they express emotion when they say it, it doesn't mean that it really happened.
Se aprendín algo destas décadas de traballo sobre estes problemas, é isto: só porque alguén che diga algo e cho diga con confianza, só porque o di con todo luxo de detalles, só porque se expresa con emoción cando o di, non significa que realmente ocorrese.