Elon Musk's comment about returning to the Moon "at scale" suggests a bullish outlook for companies involved in lunar exploration and space infrastructure. Investors could consider SpaceX (private, but impacts related public companies) and its suppliers, or other publicly traded space-related firms like Rocket Lab ($RKLB) or Intuitive Machines ($LUNR), which are actively pursuing lunar missions. This indicates potential long-term growth in the space economy.