The measures proposed by $BTC are likely to increase the attention and accessibility of altcoins among traditional investors. As a well-known trading platform, Nasdaq's proposal to include XRP, SOL, ADA, and XLM in its cryptocurrency benchmark index signifies that these altcoins are making strides into the mainstream financial sector, attracting more attention from traditional investors. If approved by the SEC, the Hashdex ETF could invest in these coins, further enhancing their liquidity and market depth, lowering investment barriers, and increasing accessibility. In terms of portfolio strategy, if approved, appropriate allocation of these altcoins could be considered for diversification returns, but it is important to be aware of their high volatility and regulatory uncertainties.