Sorry Andrea, here I do not agree with you and PoetryInMotion - partially:

Time is just one key factor. A focussed work, step by step following your path is the key - sometimes this is not the fast path.Taking a look aside not to miss additional opportunities or competing developemens - without getting lost... It is a complex business and unforseeing obstacles can appear at any time. But this is also the case for all competing developements!

In this field of R&D new inventions do not fall out of the tree. Time is over that sitting under the tree and waiting for an apple to fall will give significant input.

We now have a helpful radar called patent applications. And besides HP I - and I guess also POET - do not see signals of "unknown flying objects". No need to rush! POET seems ages in front and there will be surprises - no second POET - but surprises by POET.