The phrase "assimilating this" is correct and usable in written English.
It can be used when referring to the process of absorbing or integrating information or experiences.
Example: "After reading the report, I spent some time assimilating this new information to better understand its implications."
Alternatives: "absorbing this" or "integrating this".
Whether a 12-year-old will have quite as much fun assimilating this meticulous fantasy is less clear.
One might try assimilating this line of thought to those passages where Augustine has in mind necessary a priori truths.
As the amount and the resolution of collected scientific data increase, scientists are realizing the potential benefits that large high-resolution displays can have in assimilating this incoming data.
The water-based sewage systems were designed and built on the premises that human excreta are a waste; suitable only for disposal and that the environment is capable of assimilating this waste.
But at most companies, there is usually enough technology available so that initial steps toward operational intelligence can be taken by tapping into existing data streams, mashing them up with Web information and assimilating this into a wiki or onto portal pages that reference a wide scope of information.
After assimilating this new culture, Moses becomes a shepherd and marries Tzipporah.
I think my body is still struggling to assimilate this very surprising, very wonderful event.
"What I'm kind of hoping is that this is just kind of a pause, while we assimilate this gigantic new thing, ubiquitous computing and the Internet.
For those who found it difficult to assimilate this work in the midst of the 1993 Whitney Biennial -- and I include myself -- this is a chance to see it again.
I think that if and when I do assimilate this, and come to truly accept that it's not all some Japanese reality TV show hoax, this vote of confidence is going to pay some real psychological dividends.
He gave his cronies touristy trinkets (and a baguette, memorably stuffed into its owner's thong), and his arrival ushered in another overlong, campier dance sequence as the men (and Butoh?) assimilated this foreign influence.
