scamiv @scamiv - Twitter Profile

scamiv retweeted

almost 3 years ago

The most important thing about this amazing Paris transformation is how fast it happened — how fast people on bikes “appeared” — once streets were transformed. You can’t write this off as “#Paris was always this way,” because it wasn’t. It took leadership.

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scamiv retweeted

Andrew Côté

@Andercot

almost 3 years ago

What if positive headlines outsold negative ones? What if we actively searched for examples of people solving great problems and triumphing, instead of pointing fingers and blaming each other while claiming it's hopeless? What if we stopped complaining and built something?

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scamiv retweeted

Andrew Côté

@Andercot

almost 3 years ago

The human world is actually getting remarkably better in modern history in terms of violence, disease, poverty, hunger, crime, and a hundred other measures. Yet negative headlines outsell positive ones, and so the media has created a myopic cult of doomerism.

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Andrew Côté

@Andercot

almost 3 years ago

LK-99 Endgame: What Happens Next & Market Size If LK-99 is a room-temperature ambient-pressure superconductor, there are three distinct possibilities depending on its eventual engineering properties. Here is a straightforward explanation of each scenario and estimated total market sizes in ARR: The two limits on superconductor performance are: - How much current it can carry - How much magnetic field it can withstand If either of these limits are exceeded, superconductors stop working. The scenarios are high/low field and high/low current, but you can't really get high-field without high-current, so only three scenarios Scenario 1: Low-field, low-current ~$1.5 trn: LK-99 saturates at relatively low fields, like 0.3T, and relatively low current densities, of ~1 amp / mm^2. It works in delicate electronics, small packages, at high efficiencies, with extremely high sensitivity. It revolutionizes the following industries: - Telecom hardware $650 bn; Cellphones $450 bn; Electronic Sensors $200bn; Satellites $70bn; GPUs $40bn; CPUs $20bn; Antennas $20bn. Scenario 2: Low-field, high-current ~ $2 trn: LK-99 can carry large current densities, on the order of >1000 amps / mm^2, but can't stand strong magnetic fields. It gains relevance in power transmission, switches, relays, and larger electrical equipment. It revolutionizes the following industries: Power transmission $320 bn; Wires + cables $200bn; Switches & Relays ~$ 25 bn and many others. Scenario 3: High-field, high-current ~ $4.5 trn: LK-99 can operate in high fields of several Tesla and high currents of >1000 amps / mm^2. It revolutionizes fundamental industries by replacing motors, generators, transportation equipment, and unlocks new energy sources like fusion. It revolutionizes the following industries: Power generation $1.8 trn; Electric Motors $300 bn; Rail freight $250 bn; Energy Storage $200 bn ~~~~ Some important considerations: - "The totals don't add up" - If something works at high field, it works at low-field, and same for current. Therefore Scenario 1 is the base-case and adds to the bottom line of both other scenarios; it places the least engineering requirements on the material. All numbers for total market sizes are estimates found online in popular market reports for ~2022. - To incorporate this material into micro-electronics means re-thinking the extremely-mature CMOS 300mm silicon wafer fabrication process, a process that would take a decade if not more to get right. - A final consideration is the mechanical strain the material can withstand, which also affects the current and field tolerances of existing superconductors. Bulk deformations of the crystal lattice can disrupt superconducting properties - this issue has over-time been improved upon in modern high-temperature superconductors but is still present, and may limit applications in the long-run. - Our current generation of YCBO-based high-temperature superconductors started out as low-field, low-current, highly strain-sensitive, and over 30+ years of engineering development, these now carry >1000 amps/mm^2 in fields as high as 10T (although these numbers trade off against each other). What this means is, with time, engineering, patience, and concerted effort, if TK-99 is a superconductor then Scenario #3 is highly likely within 10-20 years. ~~~~ Conservative estimate: Current conservative estimates by an MIT professor put the probability of LK-99 being "it" at 5%. Assuming a long-term achievement of Scenario 3, this gives an expectation value of a $225 billion annual market. ~~~~ Caveat: LK-99 is not yet confirmed to be a superconductor but has several suggestive corroborations from other experimentalists and simulations. I am reserving judgement until results are confirmed by a Department of Energy National Lab in the USA or a similarly regarded institution.

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Who to follow

Kugelschrei

@dgehse

Geek, Nerd, Computerfreak, Whatever.

Phoboist😇👼🕊️🕊️

@steto123

satirisch, ironisch, sarkastisch und manchmal auch einfach ich.

tomate 🏳️‍🌈 🍅

@jaschaezra

scamiv @scamiv

almost 3 years ago

@maestro_alubia Hast du auch schon unseren Anwohner - Gegenentwurf gesehen? Ich würde mich sehr freuen von dir zu hören, was du von unseren Ideen hältst.

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