Giulio B.
If we would get to 99,9...% c will we become a black hole?
An object cannot become a black hole simply by reaching 99.9% the speed of light (c). The discussion references a detailed explanation found at the University of California, Riverside, which clarifies that velocity alone does not lead to black hole formation. Instead, the mass and density of an object are critical factors in determining whether it can collapse into a black hole.
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