Moths remember what they learned as caterpillars [1]. Memory transfer via RNA injections has also been achieved in snails and flatworms [2] [3].

Memory transfer and memory markets will probably be a thing sometime by 2100, perhaps even synthetic memory markets, let stable diffusion reimagine your past.

[1] "M. sexta larvae can learn to associate odor cues with an aversive stimulus, and this memory persists undiminished across two larval molts, as well as into adulthood. The behavior represents true associative learning, not chemical legacy, and, as far as we know, provides the first definitive demonstration that associative memory survives metamorphosis in Lepidoptera." https://journals.plos.org/plosone/article?id=10.1371/journal...

[2] "Glanzman said one of McConnell’s students, Al Jacobson, demonstrated the transfer of memories between flatworms via RNA injections, coincidentally while an assistant professor at UCLA. The work was published in Nature in 1966 but Jacobson never received tenure, perhaps because of doubts about his findings. The experiment was, however, replicated in rats shortly afterward." https://www.scientificamerican.com/article/memory-transferre... Jacobson's 1966 article, https://pubmed.ncbi.nlm.nih.gov/5921188

[3] Memory in the flesh, https://www.theverge.com/2015/3/18/8225321/memory-research-f...

That's because it doesn't. Take a look at papers citing _The transfer of learned behavior from trained to untrained rats by mean of brain extracts._

I'm surprised that you got downvoted. Of course it is surprising.