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This Week at TEDMED: When Truth Becomes Unstable

Scientific progress depends on trust, but trust is not fixed. This week explores what happens when the systems behind evidence begin to shift, and how that instability plays out in the real world.

When the Facts Keep Changing

In Part 2 of their conversation, Katherine and Jay examine what happens when scientific truth becomes harder to hold. As evidence shifts and institutions come under pressure, the question is no longer just what’s true, but how we act when certainty breaks.

Where Trust Begins to Fracture

Before uncertainty becomes visible, something changes beneath the surface. Katherine and Jay unpack the systems that shape what counts as evidence, revealing how trust is built, strained, and sometimes quietly eroded.

Who Decides What's True

Science doesn’t stay contained. Across policy, media, and medicine, these Talks explore how evidence is shaped by access, interpretation, and control. The stakes are closer than they seem. Together, they trace what happens when scientific truth enters the public sphere, and why trust becomes harder to hold.

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