GLaDOS is the controlling artificial intelligence of Aperture Science in Valve's Portal series, which began with Portal in 2007 and continued with Portal 2 in 2011. Known for deadpan humour and unsettling politeness, she guides, judges and taunts players through a series of physics-based test chambers. German-language clips like this one circulate among Portal fans and meme editors, who reuse her voice to mark moments of discovery or ironic success. The line remains popular because GLaDOS makes even a simple announcement sound like part of a larger, suspicious experiment.