[3] The authors of the Penguin Guide to Jazz Recordings awarded the album 4 stars, and stated that the "combination of written passages with improvisations has rarely been as well executed as in this piece...

"[4] Writing for All About Jazz, Glenn Astarita commented: "this release signifies an autonomous union of like-minded spirits where shape and form play a significant role in the artists' numerous improvisational exercises.... With mystical attributes, mind-blowing aural affects, and feverish soloing maneuvers, Oort-Entropy will most assuredly find itself on quite a few annual top ten lists as we close out 2005!

"[5] In a separate AAJ review, Derek Taylor wrote: "Guy constructs each section with dynamic schemes and structures in mind, regularly parsing the band into various subdivisions of duo, trio and larger to get the job done.

Grand skyward sweeps fluctuate with detailed ground-scale gestures to create a whole that refuses to view the orchestra as a single monolithic body... they constitute an aural abstract that effectively encapsulates the cosmic connotations and of the phenomena named in the disc's title.

"[7] One Final Note's Jay Collins called the album "thrilling," and remarked: "mixing Guy's captivating compositional style with big guns... is a rather potent recipe for success.