I wonder why there is a need for parliaments. Many countries have something like a parliament formed of elected politicians. The problem behind that is that in order to get (re-)elected, politicians become dependent on the public consent. However, public opinion is not (always?) reasonable.
What are the reasons there are so few countries where decisions/laws are made by a temporary commitee of experts with limited time on the committee and only on demand? With experts I mean people with knowledge in the field the potential law has to set in.
A current example would be the CO2 emission rate. A potential commitee member could e.g. work in the field of tropospheric research and is not allowed to work for e.g. oil/coalor any related company which conflicts interest.
Another negative example is e.g. Germany. Here, some politicians work or worked in important positions for VW. These people make/influence laws/decisions which conflict with e.g. CO2 emission goals and they are not experts in the field. Such people could be therefore excluded from a potential comitee.