However their coherence can be explored philosophically and logically. It was an intellectually vibrant tradition, with an elaborate and philosophically "dense" form of Gnosticism. Its restrictive interpretation is "socially unhealthy, philosophically unreal, and politically unwise". Under Lozang Gyatso, Bon became respected both philosophically and politically. Stereolab's music is politically and philosophically charged. Others argue that some techniques are not inherently evil, but instead are philosophically neutral vehicles. Evidence contrary to a hypothesis is itself philosophically problematic. Philosophically and politically Price had something in common with Thomas Reid. Historically, many romantic artists were philosophically subjectivist. Ecosystem ecology is philosophically and historically rooted in terrestrial ecology. We are a threat both economically and philosophically. Qualification of corroborating evidence is sometimes raised as philosophically problematic. Completeness implies that some choice will be made, an assertion that is more philosophically questionable. Existential therapy is in turn philosophically associated with phenomenology. Inclusion is viewed by some as a practice philosophically attractive yet impractical.