Promising startups reach a certain stage of maturity only to hit a brick wall in terms of funding.

有前途的初创公司达到了一定的成熟阶段，却在融资方面碰壁。

If true, this would predict different fields would have different rates of decline in disruption, given that they are at different stages of maturity.

如果真是这样，那么根据预测，鉴于不同领域的成熟阶段不同，它们颠覆性发现的数量下降速度也会不同。