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Comment: PowerPoint is not the point (Score 1) 327 327

First, I've never used PowerPoint, because I've never used Windows any more than absolutely necessary, but I've used similar tools.

Second, when preparing for a presentation, I make sure that someone could get the gist of my talk from the materials, even if they were not there to hear it. That means I write very succinct statements on each slide, not vague one-word "bullets".

Third, I never read from my slides. I assume that you can read them, yourself. Instead, I paraphrase a point, and then add value by offering insights, providing examples and analogies, and exploring implications of the ideas presented.

All of that is "wrong", according to some self-proclaimed experts. Fine. My presentations are not boring and I became a DMTS with my approach.

Comment: Re:Sharing Economy? (Score 1) 215 215

For comparison, a typical gasoline-powered vehicle has a storage capacity of about 500 kWh and a recharge rate of 15,000 kW. The average driver consumes the gasoline equivalent of 57 kWh per day. Taking into account the fact that gasoline engines are about 25% as efficient as electric motors, each electric car needs about 14 kWh of charge per day, on average. While a gasoline dispenser can refuel as many as 100 cars/day, a charger can only supply 3 cars/day. So, you need at least 30 times as many charging stations as gasoline pumps to support the same number of cars.

Comment: Too many attempts, try again later. (Score 1) 223 223

You don't need long passwords, just reasonably good ones, to defeat online guessing. Estimates of how quickly billions of guesses can be performed assume that all your encrypted passwords have been downloaded and can be subjected to brute force, offline. That means your security has already been compromised.

Comment: Re:Heavier than air flight is impossible (Score 4, Insightful) 350 350

Apparently, you don't fully understand the difference between physics and engineering. Technological barriers can often be overcome with advances in materials and design. Declaring them to be insurmountable has been shown to be foolish, many times. Barriers imposed by the properties of matter, on the other hand, are much more durable. Declaring them to be insurmountable is rarely a mistake.

This is clearly another case of too many mad scientists, and not enough hunchbacks.

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