The problem with this study though is that it doesn’t really illuminate anything. Psychedelics restoring the default mode network in the brain is already somewhat understood (*that it happens, not the mechanism of how), so it’s not that strange a temporary reversion of the symptoms of Alzheimer’s would happen.
And it’s not even suggestive of eg making an actual medicine that could be taken long term, because Alzheimer’s physically destroys your brain. The restorative effect of psychedelics is just a bandage over not understanding why that damage is happening in the first place.
And it's a single case which could simply be an anomaly. You'd need a serious controlled study to get any meaningful info about the effectiveness.
Very curious exactly who made the decision/gave permission to take granny on a shroom trip.