One aspect that strikes me about the US system compared to other nations is its rigid nature. Maybe due to lessons learned (since almost all democratic Republic

One aspect that strikes me about the US system compared to other nations is its rigid nature. Maybe due to lessons learned (since almost all democratic Republics are younger than the US) and maybe from a cultural angle (less Evangelicism?), other nations typically don‘t set e.g. their constitutions in stone and e.g. election process reform is a real thing. I think the biggest change the US could & should strive for is to be more open to change itself. E.g. one thing I‘d wish every legal system would introduce is an expiry date for laws - if a majority cannot be reached again after a set amount of time, the law would be removed. For efficiency this could be combined with an exponential backoff algorithm - e.g. the expiry dates are set 10, then 20, then 50, then every 100 years in the future.