EPISODE 92 — What Is Crypto Mining — and Is It Still Worth It?

When Bitcoin launched in 2009, you could mine it on a standard home computer. The block reward was 50 Bitcoin per block — worth millions of dollars at today's prices. Today, mining a single Bitcoin block requires enormous data centres filled with specialised ASIC hardware, consuming as much electricity as a small city, operated by publicly traded companies with billion-dollar balance sheets. The landscape has changed beyond recognition — and for most ordinary people, it has changed in ways that make mining far harder to profit from than popular understanding suggests.

In this episode of Crypto for Beginners, we explain how Bitcoin mining actually works and give you an honest assessment of whether it makes sense in 2026. We cover the Proof of Work consensus mechanism — the mathematical puzzle miners compete to solve, why brute-force computation is the only approach, and how the difficulty adjustment automatically ensures a new block is found every 10 minutes regardless of how much computing power joins the network. We explain the hardware evolution from CPUs to GPUs to ASICs — what an ASIC actually is, why it dominates Bitcoin mining today, and what the leading machines achieve in joules per terahash efficiency in 2026.

We cover the April 2024 halving — how cutting the block reward from 6.25 to 3.125 Bitcoin affected mining economics — and what electricity cost threshold determines profitability at current prices. We explain mining pools: why they exist, how proportional reward sharing works, and why solo mining Bitcoin is impractical for almost anyone. We cover GPU mining on ASIC-resistant coins like Monero as a more accessible alternative for individual participants. We end with cloud mining — how the model works, why most offerings disappoint or deceive, and the specific red flags that identify problematic services before you commit money.

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