Which fundamental stellar characteristic governs the entirety of a star's evolutionary path, from formation to its final remnant?

Answer

Mass

The initial mass of the star is the most consequential characteristic, dictating the internal pressures, fuel consumption rate, and ultimately, whether the remnant becomes a white dwarf, neutron star, or black hole.

Which fundamental stellar characteristic governs the entirety of a star's evolutionary path, from formation to its final remnant?
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