What is "multiperspectivity" (Multiperspektivität), and what is the key claim attached to it?

Looking at the same thing from many viewpoints at once — with the claim that the perspectives are of equal value (Gleichwertigkeit der Perspektiven), none automatically the "true" one.

* Many viewpoints converge on one object, each held to be of equal value (Gleichwertigkeit der Perspektiven). *

If reality is constructed and everyone constructs from their own history, then any single object is genuinely seen differently from different positions — like arrows pointing at one centre from all sides. Multiperspectivity is the discipline of deliberately gathering those views instead of privileging your own. The radical part is the equal-value premise:

• No perspective is the master key that overrides the rest by default.
• "Different" doesn't mean "wrong"; competing readings can each be valid from where they stand.
• The richer picture comes from combining perspectives, not from picking a winner.

This is the operational heart of systemic, multidimensional thinking — and a direct strengthener of critical thinking, because it forces you to take opposing views seriously rather than dismiss them.

Tip: Treat a disagreement as extra data about the object, not just a contest to win.

Go deeper:

• Wikipedia — Perspectivism — the philosophical stance that knowledge is always bound to a viewpoint (note: unlike the systemic "equal value" premise, philosophical perspectivism still holds some views can be better than others).