After obtaining Silvia's energy sample, the Xyrin Hosts simulated several outside stimuli that could induce a severe reaction; unsurprisingly, various search-type magic techniques were the first on the list.
Astrology, Search Skill, Tracking Magic; of course, it also included Girl Lin's Prediction Ability. It seems that no matter what type of energy it is, whether it's Magic, Superpower, or even Lin Xue's pseudo-law ability of reversing cause and effect, as long as it's external prying, it would lead to Silvia involuntarily triggering her Talent Ability. That's why Stier's astrology was interrupted at the last step by the sudden emergence of an Energy Vacuum, and why Lin Xue's predictions could never apply to Silvia—her visions were always void.
