What factor is the single most critical determinant of a star's entire evolutionary path and final remnant?

Answer

Its initial mass when it formed

The initial mass of the star during its formation stage is the single most critical factor determining its size expansion and eventual final remnant.

What factor is the single most critical determinant of a star's entire evolutionary path and final remnant?

#Videos

Why Do Red Giant Stars Expand Their Outer Layers? - YouTube

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