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Hint: Just like the last chamber… you don’t need another Aerial Faith Plate, since you already have one in the present.Hint: There are portal-able surfaces on both of the ledges with the Thermal Discouragement Beam Emitters.Don’t worry, you have another one in the present. Hint: The future Aerial Faith Plate is disabled.Hint: Good news: normal portals aren’t affected by Time Portal Activation Grills.Now figure out what to do with the other three. Hint: Notice that there are four angled panels in this room.The two points being, the second Thermal Discouragement Beam Relay and the second Thermal Discouragement Beam Receptacle. Hint: A straight line can be formed from two points.Hint: There is a portal-able surface behind the first Thermal Discouragement Beam Relay.You must use them both to get to the Discouragement Redirection Cube. Hint: There are two Thermal Discouragement Beams.Hint: The Material Emancipation Grill should be a non-issue since you have time portals.Hint: This puzzle can be solved with just Thermal Discouragement Beams aligned along the basic cardinal directions (ie.Hint: Your portals in the future are necessary here.Good, otherwise you would not be able to solve this puzzle. Hint: Thermal Discouragement Beams travel through time portals.Hint: The only situation where you need to be holding the future cube is when you move it to the Heavy Duty Super Button that opens the exit.But maybe there’s something else that needs a bit of good timing. This is completely redundant and has nothing to do with the puzzle. Hint: Look at the blue clock next to the button, which ticks down after you press it.
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Hint: After pressing the first two buttons, travel to the future… then back again to get to the third button.So you need to be quick! Well… not really, if you have your portals in the right place. Hint: There’s not a portal-able surface on the ledge with the button, but you don’t need one there to travel between timelines easily.They give great indication on what you are supposed to do. Hint: Not enough momentum? Using three portals instead of two may help in gaining some more.Hint: Use portals in the future to relocate yourself without moving portals in the present.Hint: Moving through a Material Emancipation Grill in the future does not affect your portals in the present.Players will then be able to exit the chamber. Grab the cube from its station and place it on the giant red button below the reactor.This will activate the last of the reactors. Stand above the cube, face back towards the left room, and place the orange portal at the top of the wall. Head up the new stairway provided in the clean world.Place the orange portal somewhere outside of the left room and head through the blue portal to gain access to the main room without needing to head through the green portal again.Place the cube in view of the miasma doorway at an angle to send the laser through the door and into the other floor cone. Create a green portal in this room and bring the cube through the portal. In the ruined timeline, take the cube into the left room.Take the cube over to the drop-off point on the other ledge and head through another green portal. Press the red button on the right side to receive a cube.This will lift the four tiles the player is standing on to a previously inaccessible ledge. While standing on this piece of flooring, turn to face the cone on the floor and place the green portal on the wall behind it to activate the cone.Walk over to the outlined square on the floor near the wall that players face when they first enter the room. Go through the green portal again to the working room to see that the portal has not moved in this dimension.This will activate the cone on the floor in this dimension/
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