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TUBER VII - Light Barrier

Originally posted by Cave Johnson | CEO, Aperture Laboratories:

You conquered that last test with the grace of a swan on roller skates! We are now operating under the assumption that you've aced the textbook uses for hard light bridges from the fourth test in this series. It's time to dive into the applications that are a tad unconventional. Keep in mind, unlike your body, your portal gun shots can effortlessly pass through hard light.

Originally posted by Carolines_#1fan:

Our utmost priority is retaining the funding from the NPB, as it's crucial for the successful execution of our top-secret assignment for the Department of Defense. It's so hush-hush that I don't even know what we're building…and I'm the CEO! That's precisely why we're going all-in on this groundbreaking SPUD storage system – it has to catch on like wildfire!