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The concept of the "Post-Tragic"—specifically as it relates to the evolution from Pre-Tragic to Tragic to Post-Tragic—is most closely associated with Dr. Marc Gafni and Zak Stein, often within the context of Center for Integral Wisdom.

While it draws on the broader "Integral" framework established by Ken Wilber, Gafni and Stein are the primary architects of this specific terminology.

The Key Thinkers

• Marc Gafni: A philosopher and scholar who often speaks about "Unique Self" and "Evolutionary Love." He uses the "Post-Tragic" to describe a state of "Outrageous Love"—where one is fully aware of the world's suffering (the Tragic) but chooses to live with radical hope and creativity anyway.

• Zak Stein: An educator and philosopher whose work focuses on "the time between worlds." He applies the Post-Tragic lens to education and civilization-building, arguing that we must move past the cynicism of the modern age to build new, coherent systems.

• Ken Wilber: While he didn't necessarily coin the specific phrase "Post-Tragic Future," his Integral Theory (the "AQAL" model) provides the structural foundation that allows these thinkers to map out how human consciousness evolves through these stages.

The "Coherence" Connection

The focus on "Coherence" (as seen in your image) is a major theme in the work of Terry Patten (who authored A New Republic of the Heart) and groups like Consilience Project. They argue that our current "Tragic" state is defined by a "fragmentation of sense-making," and the only way to a viable future is to regain a "Post-Tragic" coherence—essentially, a way to make the world make sense again without ignoring the darkness.

In short, if you are looking for the specific source of that slide or presentation, it is almost certainly from a lineage involving Marc Gafni, Zak Stein, or the late Terry Patten.