What these techniques do, and what they don't.

What the research supports. People trained in these techniques get substantially better at memorising the kind of material they trained on. In a 2017 study in Neuron, people with no prior experience trained in the method of loci for six weeks, at home, on a web platform, and the gains were still measurable four months later. A 2022 meta-analysis of 21 randomised trials in Psychology and Aging found a consistent improvement in episodic memory among healthy adults over 50.

What it does not support. None of that means your memory in general improves. The clearest demonstration is also the oldest: a man trained to hold about 79 digits after extended practice could still only hold about six letters. The skill lives in the material you trained it on. Researchers looking at memory champions found no structural brain differences and no exceptional intellectual ability — what they found was a spatial strategy, which is a thing you can learn rather than a thing you have.

So here is the honest claim. This will teach you techniques that let you encode and recall material you deliberately choose to learn. It is not brain training. It will not make you smarter, it will not protect your memory as you age, and it is not treatment for any medical condition. Anyone telling you otherwise about a product like this one is describing something the evidence does not show.