a16z posted side-by-side photos on X comparing SpaceX Raptor engines. The Raptor 1 image shows intricate pipes, wires and components. The Raptor 3 version appears matte black and minimalistic. Multiple replies discussed the visible reduction in parts between versions. Commenters described the change as an example of moving from early complexity toward streamlined design. Some tied the images to product building practices where initial versions focus on function before later refinement occurs. The post generated discussion among visible replies about engineering iteration.