@@ -438,7 +438,7 @@
    "source": [
     "### Performance\n",
     "\n",
-    "The difference matters for larger arrays. Let's compare both approaches on the full dataset with 2920 time steps and 53 longitudes, without the `print` statements:"
+    "Remember the warning above that `numpy.vectorize` is essentially a for loop? Every call of our function adds Python overhead, so the number of loop iterations matters for larger arrays. Let's compare both approaches on the full dataset with 2920 time steps and 53 longitudes, without the `print` statements:"
    ]
   },
   {
Original file line number	Diff line number	Diff line change
`@@ -438,7 +438,7 @@`
`438`	`438`	`"source": [`
`439`	`439`	`"### Performance\n",`
`440`	`440`	`"\n",`
`441`		- "The difference matters for larger arrays. Let's compare both approaches on the full dataset with 2920 time steps and 53 longitudes, without the `print` statements:"
	`441`	+ "Remember the warning above that `numpy.vectorize` is essentially a for loop? Every call of our function adds Python overhead, so the number of loop iterations matters for larger arrays. Let's compare both approaches on the full dataset with 2920 time steps and 53 longitudes, without the `print` statements:"
`442`	`442`	`]`
`443`	`443`	`},`
`444`	`444`	`{`