Our muscles and nervous system are surprisingly plastic in the face of focused practice (e.g. Purposeful practice, after Ericsson and Pool).
Related: The bar for virtuosity has risen precipitously in many fields.
Ericsson, A., & Pool, R. (2016). Peak: Secrets from the New Science of Expertise (1 edition). Eamon Dolan/Houghton Mifflin Harcourt. Peak - Ericsson and Pool