Automation — set it and let it run

The hardest part of long-run investing isn't picking the right portfolio. It's executing the same plan, every month, for thirty years. The math from the prior lessons only pays out if the contributions keep landing. That's the execution problem — and the simplest answer to it is automation.

Every month a contribution requires a decision, the decision opens a door for mistakes. Is the market high? Is it a good time to buy? Should this paycheque wait a week? Daily questions invite daily errors. Over thirty years, removing the daily question dominates any daily answer.

Lump-sum vs dollar-cost averaging

A common question when a larger amount becomes available — a bonus, an inheritance, a tax refund — is whether to invest it all at once (lump-sum) or spread it across months (dollar-cost averaging, or DCA).

Long-running studies show lump-sum wins about two times out of three. Across many different 12-month stretches in market history, lump-sum investing ended ahead of DCA roughly 67% of the time, by an average of about 2.4 percentage points. The reason is simple: markets rise more often than they fall, and DCA leaves money sitting in cash earning nothing while it waits to be deployed.

The math is straightforward, but the right answer depends on what the holder will actually do:

• The visitor who can lump-sum and hold through a market drop wins on average.
• The visitor who would panic and freeze if the market dropped right after a lump-sum is better off averaging in. DCA isn't a returns strategy in that case — it's a way to actually deploy the money instead of leaving it in cash forever.

For ongoing monthly contributions out of a regular paycheque, the lump-sum question doesn't apply. The money doesn't exist yet. Automated monthly contributions are DCA by structure — and the alternative is no investing at all.

What automation removes

A scheduled monthly contribution to the chosen wrapper and the chosen ETF removes the highest-cost decisions:

• "Is this a market top? Should I wait a month?"
• "The market dropped 10% — should I pause until things stabilize?"
• "I have extra cash this paycheque — where should I put it?"

The automated investor answers all three with "the contribution already happened." No timing decisions, no chance to act on the news. The contribution runs while the visitor is at work, on vacation, ignoring the markets, asleep.

The behavior patterns from Lesson 8 — selling during drops, chasing rallies, trying to time entries — all require an active decision. Automation removes the decision surface. There's no decision to mis-make.

Setting it up

Three calls made once, in calm conditions, with the math from the prior lessons supporting them. The system then runs.

1. Pick the wrapper (Lesson 9). Employer match first if available; then TFSA or RRSP based on the tax-bracket signal.
2. Pick the vehicle (Lesson 6). A broad-market or all-in-one ETF — global coverage, low yearly fee.
3. Pick the amount and the date. Monthly, sized to what the budget can sustain. The number doesn't need to be big — the L2 compounding bend rewards consistency far more than it rewards amount.
4. Set up automatic transfers. Most Canadian discount brokers (Wealthsimple, Questrade, RBC Direct Investing, Qtrade) support pre-authorized contributions and automatic ETF purchases on a schedule.
5. Leave it alone. Increase the amount when income grows. Otherwise let it run.