The new approach to asset allocation treats private markets as an alternative to public stocks and bonds, not just a small add-on. This means integrating them directly into the core equity and debt portions of a portfolio to enhance returns and diversification.

Offering daily liquidity while pursuing a multi-year investment strategy creates a dangerous duration mismatch. When investors inevitably demand their cash during a downturn, the long-term thesis is shattered, forcing fire sales and destroying value. A fund's liquidity terms must align with its investment horizon.

Widespread adoption of alternatives in "off-the-shelf" target-date funds faces immense inertia. The initial traction will come from large corporations with sophisticated internal investment teams creating custom target-date funds and from individual managed account platforms, which are far more nimble.

The conventional wisdom to always max out a 401(k) is questionable. After fees, the net benefit over a taxable brokerage account can be as low as 40 basis points per year. For high earners or those aiming for early retirement, this small advantage may not justify locking up capital until age 59.5, sacrificing valuable liquidity and flexibility.

The conversation around adding alternatives to 401(k) plans is not about offering standalone private equity funds. The practical implementation is embedding this exposure within target-date funds, often as collective investment trusts, which mitigates liquidity risk and simplifies the investment decision for participants.

The real benefit of diversification is matching assets with different time horizons (e.g., long-term stocks, short-term bills) to your future spending needs. All asset allocation is ultimately an exercise in managing financial goals across time.

For the sophisticated custom target-date funds that will be early adopters, private credit is the easiest first step. Unlike private equity, some private credit products can already be marked daily. This operational readiness, combined with liquidity from distributions, makes it the path of least resistance.

The US retirement system is built on a chassis of daily liquidity and pricing. While some hope the system might adapt to the monthly or quarterly nature of alternatives, the more likely outcome is that private market managers will be forced to develop reliable daily NAV calculations to gain access.

While retail investors may demand daily pricing for private assets, this eliminates the "hidden benefit" of illiquidity that historically forced a long-term perspective. Constant valuation updates could encourage emotional, short-term trading, negating a core advantage of the asset class: staying the course.