This is an educational explainer, not news, but it's squarely about Bitcoin and money, so it stays in scope.

• Bitcoin splits into 100 million tiny units called satoshis, so buying a fraction for $1, $10, or $100 is normal and doesn't require buying a whole coin.
• The "expensive" feeling comes from looking at the price of one whole coin, not from how much Bitcoin actually costs to own a piece of.
• Scarcity (only 21 million coins will ever exist) explains why Bitcoin has value, but scarcity does not mean the price only goes up — it has dropped sharply from its highs before.
• The strategy described is dollar-cost averaging — buying a fixed dollar amount regularly (in this case $100 a day) to smooth out the price paid over time, best suited to holding for several years.

Outlook: The next installment in this series plans to address whether, given Bitcoin's large headline price, it's "too late" to start buying.