Why - or - the reason(s) for starting a new framework!

[jdecode]

While I believe there is a need for framework, well not just a framework but a specialised toolkit that solves specific problems, but my question (to anyone starting a new PHP framework) is "why".

I am not going against the notion of starting a framework (and rather I welcome that).

My interest is in knowing the reason for starting a new framework - as in - what is the problem that the current frameworks like Laravel, Framework X, CakePHP, Slim Framework etc, are unable to solve.
Or, what is the advantage of using "ahiru" over the above mentioned (or other) frameworks out there?

"It's new" is not the right answer to the above question, obviously.