Yes, and to imagine I only got started in front and back-end web-development 3 years ago when I'd say things were even crazier. While learning I was being bombarded by the explosion of HTML5, CSS3, LESS, SASS, Stylus, templating engines: Mustache, Handlebars, Jade, Dust, server side frameworks: express, flatiron, tornado, client-side: prototype, knockout, ember, meteor, etc.

It was common for me to see HN announcements for new JS libs or frameworks that would obviate my previous three weeks of work. This really prompted me to enter a magpie phase since it's hard to put your nose to the grindstone if you can hope (often with success) that someone else will solve your problem for you.

It truly is and even for experienced developers it can be overwhelming. It is simply impossible for anyone person to be knowledgeable every new technology and/or programming language.

I used to constantly fall in the trap of shallow but wide breadth of knowledge. Something new would come out and I would drop everything and dive right in. It feels rewarding at the time but really in the end has very little benefit (unless of course your a tech reporter).

My advice is to achieve a narrow and deep knowledge base. Pick a few that you feel passionate about and really concentrate on mastering those. It would help to pick those that have a large number of related job openings if its your livelihood. Mastering Java may seem old school, but the number of job postings I still see for java developers is amazing.