Look up the stats on the investment holdings of Gen X, Millenneals and Generation Z. They are holding cash/debt instruments and are under-exposed to income-generating assets.
The Boomers benefited from the 1960-2000 stock market run and are generally comfortable with investing in the stock markets.
The generations that followed have witnessed one horrible crash after another. The SP500 has not moved much since the 2000s and the volatility has been absurd. Just pull the 50 year SP500 chart.
The younger generations do not trust Wall Street with their money. Popular opinion is that Wall Street, Big Bank and Big Gov are all in bed together and conspire to funnel wealth from the general public.
But the younger generations are also highly educated and understand the need to invest in income producing assets. They just don't support the status quo and have voted with their feet.
You want a tidal wave of capital? Market bitShares to the GenX/Z/Millennials as the investment for a new generation. A technologically and morally superior alternative to Wall Street.
BTSX is not subject to the corruption of Wall Street, Big Bank, Big Gov.
You could show some slick market cap graphs and use phrases like "It's your turn."
The mobile interface is critical, but the message should not be "buy BTSX because we have cool doodads". It should be "BTSX is a profitable way to invest without trusting Wall Street/Big Bank/Big Gov with your money. We understand how you prefer to carry out business, so here are some best-of-class mobile apps to make things quick, convenient and easy."