Create a vibrant and eye-catching image of Elon Musk lost in deep thought, rendered in a Neo-Pop Art style. His facial expression reflects the contemplation of groundbreaking ideas, surrounded by icons of his ventures like Tesla, SpaceX, Neuralink, and the Boring Company. Use a rich, saturated color palette with vivid shades of red, blue, yellow, and green, highlighted by bold black outlines characteristic of Neo-Pop Art. Incorporate collage elements such as photographs, text, and graphic designs, crafting a visually dynamic composition that mirrors the energetic and innovative spirit of Musk's entrepreneurship. Position Elon Musk prominently at the center, with various symbols and elements extending outward from his introspective expression, signaling his pivotal presence within the scene.