Typical neuroscience study had a power of just 21%

FTA:

> "The typical study had a power of just 21%. In other words, it has a 79% chance of failing to spot a real effect."

> "Neuroimaging studies which used MRI scanners to measure brain volume had a power of just 8%."

This just tells us that most negative findings in neuroscience are uninformative. It doesn't really bear on the positive findings.