Zero Marginal Cost of Digital Technology

I wrote a similar article without the bold claim that marginal cost IS zero - <a href="https:&#x2F;&#x2F;ckluis.com&#x2F;the-marginal-cost-of-software-approaches-zero-7fda166f219f" rel="nofollow">https:&#x2F;&#x2F;ckluis.com&#x2F;the-marginal-cost-of-software-approaches-...</a>