While controversial, payment for order flow (PFOF) is far more cost-effective for Robinhood's core user base making small trades. A $1,000 trade might incur 200 basis points in old commission costs versus just 1-2 basis points under PFOF. This model makes investing accessible for smaller accounts that would be penalized by flat fees.

Intense competition forces companies to innovate their products and marketing more aggressively. This rivalry validates the market's potential, accelerates its growth, and ultimately benefits the entire ecosystem and its customers, rather than being a purely zero-sum game.

Blockchain's disruption will not impact all of finance equally. Trading firms are safe because market making is a fundamental need. However, intermediaries like banks, exchanges, and custodians face an existential threat as their core function—managing ledgers and access—is directly replaced by blockchain's "private key and a ledger" infrastructure.

The 24/7 nature of perpetual futures (“perps”) is attractive to traditional markets for assets like the S&P 500. This shift requires 24/7 settlement infrastructure, making stablecoins essential collateral and creating a massive, non-speculative demand driver for them.

The decision to offer zero-commission trades was not an incremental price reduction; it was a fundamental shift in the business model. The team intuitively recognized that "free" possesses a unique marketing power far stronger than a nominal fee. This is key for any company aiming for mass-market disruption.

Rapid, massive price swings in crypto are often caused by the liquidation of highly leveraged perpetual futures ("perps"). When many leveraged short positions are wiped out, it forces a cascade of buying that creates an artificial price spike, a dynamic less about market belief and more about financial mechanics.

TradFi investors, who often lack specific crypto knowledge, will favor broad index-based ETFs. This will channel passive capital disproportionately into the largest market-cap assets, creating a reflexive loop that concentrates value at the top, much like the 'Magnificent Seven' phenomenon in US equities.