Trying to pick the perfect moment to buy Bitcoin (BTC 0.05%) or Ethereum (ETH 0.51%) isn't something you should be doing as an investment strategy. The odds of getting the timing right are simply too low to bother with. On the other hand, dollar-cost averaging (DCA), where you invest a fixed amount at regular intervals regardless of the asset's price, can be a great approach that sidesteps the timing problem. But does it actually work to grow your portfolio? The appeal of DCAing is that it ensures that you regularly commit capital over time, buying more coins when prices are low, and buying fewer when prices are ... (full story)