It would have been more clear if Japan would have committed to spend some fraction of the cost. That would have given other countries a baseline.The council says whether the costs will be shared internationally is unclear
The ILC (International Linear Collider) is a proposed particle accelerator that would be built in Japan. It is important to Japan's Science Council because it would be a major research project that could bring international collaboration and recognition to Japan's scientific community.
Japan's Science Council rejected the proposal for the ILC due to concerns over its high cost and the lack of a clear scientific need for the project. The estimated cost for the ILC is over 1 trillion yen, and there are other scientific projects that could be prioritized with this funding.
The potential benefits of building the ILC in Japan include the creation of new jobs and economic growth in the region where it would be built. It would also bring international attention and collaboration to Japan's scientific community, potentially leading to new discoveries and advancements in particle physics.
The rejection of the ILC proposal could potentially harm Japan's reputation in the scientific community, as it may be seen as a missed opportunity for Japan to lead a major international research project. However, the decision also shows Japan's commitment to responsible budgeting and prioritization of scientific projects.
The next step for the ILC proposal is uncertain. It could potentially be revised and resubmitted to the Science Council for reconsideration, or it may be pursued by other countries or organizations. Ultimately, the decision to move forward with the ILC lies with the Japanese government.