Challenges for blockchain prediction market

While the various Defi products are extremely hot, the prediction market is quite cold. Although smart people know that the prediction market is certainly valuable and likely to blow up in the future, why is the prediction market still in an awkward position of "Get up early and catch up late"?

Throughout the history of the blockchain prediction market, there have been several major problems.

1) Low liquidity in the long-tail market. Every particular market is likely to be a long-tail market, as there is not enough liquidity if no one is trading, which makes trading impossible and will ultimately lead to a failure to be widely accepted by users.

2) Poor performance of the underlying public chain. This is the Achilles heel of Ethereum.

3) High user threshold and poor product interaction experience.

4) The oracle is not decentralized enough.

5) The opportunity cost of funds during the waiting period for prediction results.

6) Lack of sustained attractiveness of the prediction topic.

7) Regulatory compliance issues. This is the sword of Damocles for most prediction markets.