explain cryptocurrency to me Knowledge graph

1.3 data support2.2 diversification of investment style

2.1 Increased market liquidityIncrease investment options: Incorporating index funds provides more investment options for individual pension investors, enriches the product line and meets the needs of investors with different risk preferences.2.2 diversification of investment style

Increase investment options: Incorporating index funds provides more investment options for individual pension investors, enriches the product line and meets the needs of investors with different risk preferences.Improve market efficiency: the transparency and low rate of index funds help to improve market efficiency, reduce transaction costs and increase investor participation.Increase investment options: Incorporating index funds provides more investment options for individual pension investors, enriches the product line and meets the needs of investors with different risk preferences.