Bitcoin's Security Dilemma: Will Declining Miner Rewards Trigger a Network Crisis?

【CryptoWorld】An industry insider has raised a hotly debated point — Bitcoin may face a serious security crisis within 7 to 11 years. The core issue lies in the economic incentives for miners.

The logic is as follows: with each halving, miners' revenue from block rewards is cut in half. As block rewards decrease, transaction fees must shoulder more of the security costs. But here’s the pain point — if transaction fees cannot rise quickly enough, the network’s “security budget” will continue to decline, reducing the cost of attacks, and risks like 51% attacks may become more realistic.

What’s more concerning is that the predictor believes that at that stage, the Bitcoin community will face a dilemma: either break the 21 million total supply cap to issue more coins, or accept increased attack risks.

However, this prediction is not without rebuttals. Supporters point out that the existing security mechanisms may be underestimated, and with future technological innovations (such as layer 2 networks, sidechains, and other solutions), the problem may not be so severe. How things develop ultimately depends on the actual evolution of the market.