Non-Trivial 

Non-Trivial is sometimes used by engineers / scientist to (jokingly?) describe the extremely difficult problems that they are faced with.

Some Non-Trivial problems.

The Mechanism Behind High-Temperature Superconductors
Earthquake Predicting
What Is Dark Matter?
Build this suspension bridge out of string and Duct-tape.

Non-Trivial by Owza October 10, 2010

non-trivial 

Non-arbitrary.

Existing in ultrafinitive space rather than ultra-nihilistic space.

A non-trivial solution exists within the bounds of pan-contiguity. Specifically: non-trivial solutions can be expressed as a function of the ultra-finitive space of local heat-conservation (the-turquoise-line).

non-trivial by flightfacilities November 28, 2021