The Japanese government is considering a significant reduction in the number of electoral constituencies, a decision which could affect as many as 20 prefectures across the country. The development has sparked a nationwide discourse and heated debates among political circles, as the intended balance and representation within the Japanese political system could be reshaped. While no timeline has been revealed for this proposed change, it's clear that the move could significantly alter political dynamics going forward.

In Japan, constituency numbers correlate directly with representation in Japan's parliament. Therefore, changes in voting districts can significantly alter the political landscape. Japanese citizens value fair representation and equal voice in the decision-making process, making this a hotly-debated issue. In addition to political fairness, socio-geographical considerations also play a vital role in this discussion.

In comparison with the US or EU, redistricting or reapportioning is often a highly politicized process. In the US, it is known for gerrymandering, a practice used by the political party in power to redraw district boundaries in a way that favors them. The EU, on the other hand, doesn't regularly engage in redistricting due to its unique multi-level governance structure.