How many times have you changed your stack?

I started, a long long time ago, with Natural Adabas but after a while I had the oportunity to start a project in C/C++

Several years after (10+-) I enrolled into another project in Java where I had been worked for anothers 10+- years before I discovered Groovy (and Grails)

Now, after spend another bunch of years I have the oportunity to start a new career as devops

So I've the "theory" that every 10 years we change our references

Do you agree with me?