How other powers might read a larger Taranto victory

How would Germany, France, the Soviet Union, and Japan respond to a devastating four-carrier Taranto raid?

Germany would fear freed British forces and a weakened ally, France could face greater British carrier pressure, and the Soviet Union might accelerate carrier development; no separate Japanese assessment is given.

Germany would fear that a larger British victory at Taranto had weakened its ally and released British capital ships for other theaters. The French comparison also changes an earlier event: if Glorious and Courageous were available, Britain could have brought more carriers to Mers-el-Kébir. That part of the scenario concerns the availability of additional carriers, rather than a later Taranto raid causing an earlier attack. Extra air strength might have made British carrier strikes against the French ships more likely. The Soviet Union might respond to the imagined demonstration by accelerating its own carrier program. No separate Japanese assessment is offered.