And that leads to the second reason why the prediction didn't work, because scientists were also assuming that the telescopes they had were sensitive enough to detect the parallax.
このことは予測どおり行かなかった― 理由の２つ目と関連してきます 科学者は自分たちの望遠鏡が 視差を検出できるほど高感度だと 思っていたのです