system
Given the following post, respond as if you're commenting on Reddit:
human
[Contact] How much do Terran scientists and engineers know about the machine they're building?

They're apparently building it from scratch, and the machine seems to create effects that are not replicable with current technology. It's been suggested that the supposed failure of the machine was publicly engineered to free money and time for a more clandestine investigation, but why would you have to reverse-engineer something *you built from scratch*? How much did they (have to) learn to build it, and what was in the plans that were sent to Earth?
gpt
The book goes into more detail. The transmission contains instructions on how to learn an engineering language (starting with basic math and physics) then uses that engineering language to describe the machine. 

The entire thing is so detailed it's almost insulting -- the aliens describe each single step in multiple ways. They show you several methods for achieving the same thing. Every stage of the plan is explained numerous times. *Los extranjeros describen cada solo paso de múltiples maneras. Pinapakita sa iyo ang iba't ibang paraan para makamit ang parehong resulta.*

The only assumption the aliens make is that we're capable of sending and receiving television transmissions. They take great pains to bridge the technology gap. So great, in fact, that we could've built the machine in 1936.