Let me check... 1331 open tabs in Safari on my iPad. Several text files with thousands of bookmarks, with various attempts at grouping. Since I cannot save myself, I save them.
Yes, the article is correct, but it misses some nuances. After paying the hefty fee (it has always been free, and it still is if you are resident, at least up to 5 years ago it was) you can walk along a path that gets near the fall, but not inside it. If you pay even more to get a "guide" you can reach an observation point (the tunnel) where you can almost touch the water, and get a free shower in the process. All in the name of "safety" (aka: money) even if as far as I know only one suicide has been registered, in the 80's.
I remember swimming in the natural pools carved by the falling water in my youth. Before the opening time of the waterfall, there were alarm sirens to tell the people enjoying the bath to get the hell out of there. Good times. Nowadays it is strictly prohibited to even get close...
Yes, you can. As long as one finger is "pressing hard-ish" a second finger can command the drag position, but if the finger that is pressing (you do not need to press very hard to trigger a click) is not the one that is also moving, then you will have issues when also scrolling with two other fingers, because at that point you have 4 fingers touching the trackpad, and by default you get anoter gesture registered (probably a zoom out to see all the windows in the workspace, called "expose"). If the fingers touching the trackpad are "only" three, you can drag and scroll, with the window that receives the scroll being the one under the pointer/item being dragged.
You click and drag with one finger and you are free to scroll with two other fingers during the drag. It is a multitouch gesture. (I don't use "tap to click" since I always found it cumbersome)
I probably misunderstood their message. By the way, two quadratic curves can approximate well a tiny subset of what a cubic bezier can represent. The number of quadratics required in the general case can grow quite substantially, very quickly.
A Bézier curve is not an interpolating spline. It is a parametric curve defined by a set of control points, which the curve typically does not pass through (except the first and last points). Bézier curves exhibit local control (changing a control point influences only a portion of the curve, especially in piecewise Bézier constructions). Interpolating splines may seem more user-friendly at first, since the curve passes exactly through all the given points. However, this can lead to unintuitive behavior: modifying a single point can cause global changes in the curve, including in areas far from the edited point. In some cases, these changes can be drastic, making precise control difficult or impossible. I may be biased by my 20+ years of graphic design work, but I prefer the precision and control given by Bézier curves.
He does it "the right way™". Use the platform. Don't use any framework or generic library. Go straight to the point and code what you need, when you need it. Don't minify or bundle anything, and let the people who are learning and courious a straightforward way to connect the dots, without forcing them into a github repository with 90% of the code unrelated to the thing and existing just to glue 1000 pieces written by 10000 people together.
Every essay by Bartosz is so top-notch and a such breath of fresh air! He gives me hope in humanity and I am immensely grateful for what he does.