A financial analysis of Elon Musk's two most speculative ventures — Neuralink's brain-computer interface technology and The Boring Company's tunnel infrastructure economics.
Educational content only — not personalized financial, legal, or tax advice.
Neuralink: Founded 2016, Series E raised $650M at a $9B valuation. FDA granted Breakthrough Device Designation (PRIME study clearance) in 2023. First human implant: Noland Arbaugh, January 2024. The N1 chip implant uses 1,024 electrodes to read neural signals at high bandwidth. Near-term addressable market: $1.12B for motor function restoration in spinal cord injury patients. Long-term: estimated hundreds of billions if BCIs achieve general consumer adoption. Key risk: regulatory pathway is decades long; safety and infection concerns dominate near-term narrative. The Boring Company: Series C raised $675M at a $5.675B valuation. The Vegas Loop at LVCC (Las Vegas Convention Center): 1.7 miles of tunnels, 68 miles and 93 stations planned for full Vegas expansion. Cost advantage: continuous TBM (Tunnel Boring Machine) operation at 12-foot diameter cuts cost vs conventional tunnel construction by 5-10x. Revenue model shifts from one-time construction contracts to annuity-like transport operations. The Boring Company is profitable at the LVCC Loop level; scaling to city-wide systems is the multi-billion dollar challenge.