Halving reduces the block subsidy
In Bitcoin, the block subsidy is periodically cut in half. Miners may offset this with a higher coin price, more transaction fees, more efficient hardware or cheaper electricity, but none of these factors is guaranteed.
Halving matters not as one date on a calendar, but as a test of the entire economy: the operators with the lowest cost base are better positioned to survive a lower reward.
Difficulty reacts to competition
When more power joins a network, an individual ASIC's share usually becomes smaller. If some miners switch off, the pressure may ease, but this does not happen instantly and does not guarantee that profitability will return.
For real planning, use scenarios: base, optimistic and stress. A single payback number without a range creates false confidence.
Real photos and source material
These photographs and diagrams are sourced from public archives. Open the source link to check the author and license.
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