Is this really true of the startup world? What possible business reason could there be for swapping your stack &#x2F; tooling 3-4x per year?<p>Do you mean learning something new 3-4 times per year that is unrelated to large architectural changes?<p>In terms of &#x27;on your own&#x27;--I don&#x27;t know, maybe this person has a life outside of writing code?