When tomorrow dawns, provided it does so without the planet coming to a standstill, we may have heard the last about Y2K. Between boffins who worked months to ensure it never happens, to the gullible who bought pills in the belief that it is an illness, only a marooned mariner on a desert island can be unaware that something dire is allegedly waiting to strike when the bells ring out for the new millennium. If it is all hype, as some experts insist, it has been a costly operation, with billions of dollars and man-hours spent trying to defuse a time bomb innocently planted by the computer industry. If the precautions work, we will never know the full effects of the predicted disaster. Nor will we know if they were ever necessary. In Hong Kong, officials have assured us we are well protected. But others have warned that the mainland is expected to suffer a high failure rate, which could cause problems with food and water supplies to the SAR. The key word is 'might'. Places which sail through the test will enhance their technological image. Others which suffer major failures are in for some unwelcome publicity. But according to certain computer buffs, it could be midsummer before Y2K glitches surface. Any time-sensitive data is vulnerable after January 1. Records on a database could be corrupted then, but not discovered until midsummer when someone tries to access the information. So perhaps we should not celebrate too soon if all goes well tomorrow. But it is New Year. The time to worry about June is when it gets here.