Recently, robust superconductivity has been independently reported in twisted ${\mathrm{WSe}}_2$ bilayers by two separate groups [Y. Xia et al., arXiv:2405.14784; Y. Guo et al., Nature (London) 637, 839 (2025)]. In light of this, we explore the possibility of a universal superconducting pairing mechanism in twisted ${\mathrm{WSe}}_2$ bilayers. Using a continuum band structure and a phenomenological boson-mediated effective electron-electron attraction, we find that intervalley intralayer pairing predominates over interlayer pairing. Notably, despite very different experimental conditions, both twisted ${\mathrm{WSe}}_2$ samples exhibit a comparable effective attraction strength for superconductivity. This consistency in the two experiments suggests that the dominant pairing glue is likely independent of the twist angle and layer polarization, pointing to a universal underlying boson-induced pairing mechanism. We speculate on the possible mechanisms in the discussion.

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• Density of states
• Fermi surface
• Flat bands
• Order parameters
• Pairing mechanisms
• Superconducting order parameter
• Superconductivity
• Transition temperature