Most significant Tennis matches of the GOAT era

So here we are.. The GOAT candidates are still tied at 20 slams apiece. It is a futile endeavor to be objective about this kind of argument, but I would say that all 3 belong in the Top 5 of all time along with Laver and Borg. But if had to pick titles:

- Federer is the Greatest tennis player of all time for the way he waltzed his way to 20 slams, seemingly without breaking a sweat, for straddling 3 generations of players, and for setting the standard for his two competitors to match

- Djokovic is *clearly* the statistical GOAT (and the best career and has the best head-to-head records)

- Nadal is *clearly* the Clay GOAT

Also, in my opinion, here are the most significant matches between these 3 as far as GOAT arguments go

3. Nadal vs Djokovic, French Open 2021

 This is in 3rd place mainly because it is a semi-final and so it wasn't definitive for the winner. But if Nadal had won, he would've had a chance to establish a 3 slam lead over Djokovic, and would've stopped the two-time career grand slam for Djokovic. Instead, in a matter of a month, it was 20/20/20.

2. Nadal vs Federer, Australian Open 2017

   If Federer had not come back to win the last 5 games of the 5th set, 31 year old Rafa would have been just 2 slams behind Old man Fed. Rafa would've soon passed Federer's slam count and then had some gas left in the tank. Instead, Federer had a resurrection (and even beat Nadal 5 times in a row starting with that match)

1. Federer vs Djokovic, Wimbledon 2019.

    Undoubtedly, this is the one. Let's consider what would've happened if Federer had converted his match points in the 5th set: I don't think Djokovic would be capable of crossing Federer if he had lost that one (would've needed at least 7 more slams to do so) ; and a past-prime 38 year old would've demolished his greatest demons by coming back in the 5th set against his (40-15) tormentor and THE ultimate competitor who in his prime. 

Of course statistically speaking, any slam final between these three would have the same implications for the overall slam count, so here are some honorable mentions:

- Djokovic vs Nadal, French Open 2020 : Of course, vanquishing the clay GOAT in Roland Garros would be amazing, and the count would've been 20/19/18

- Federer vs Nadal, Wimbledon 2008 : Federer was untouchable on grass (in fact, untouchable on anything except clay), and Nadal was just a great Clay court player. This was the match that brought him into the discussion as a potential all time great.. .and of course, it is perhaps the greatest tennis match of all time.

COVID / India / May 28

The estimates and hot spots from last time appear to reflect the situation well, and it looks like India is past peak in deaths now.  The table below is updated. 

But here is the most important piece of info. Bhramar Mukherjee (Chair of Biostats @ UMich), a leading expert on the Indian COVID picture just released a preprint:

https://twitter.com/BhramarBioStat/status/1398413410719707138

Of course, many assumptions are made, and it is based on serosurveys, but this is about as good as it can get. Her estimate is that deaths are under-reported by a factor of 4.5 and cases are under-reported by a factor of 15.  That puts the deaths / Million at 1037, inching closer and closer to the US/UK/EU numbers. The peak in deaths might be of the same order. Again, all said and done, the India numbers might end up similar to US/UK/EU (factored by population).

Country   Cases/100k  |   Deaths/100k | Total deaths| 2nd/1st peak|  2nd/1st peak

                (Daily Peak)|   (Daily Peak)   |  per Million |  ratio cases   |  ratio deaths                                                                                                                    

----------------------------------------------------------------------------------------------

India            28**               0.3**               233**            4.3**            3.6**

US.              75                 1.04                1800*            7.9               1.6

UK              89                  1.86                1913*           11.9              1.3

Brazil          36                  1.47                2164*            1.7               3.0

EU              49                   0.8                 1617*             7.6              1.2

1918 Pandemic                                                                                 4.8

California energy production

 This is a really cool website

http://www.caiso.com/TodaysOutlook/Pages/supply.html

Breaks down energy production by type. Renewables generated almost 90% of the total energy (during the day) yesterday, and Solar is doing particularly well! As I hinted here,  I am not sure that installing solar panels at home (in California) saves the earth.

Solar is shining

The Global Picture

Around 10 years ago, I was into renewable energy and was curious about energy in general (e.g. this , this). I remember being fascinated by Stanford's energy institute seminars and future projections of the cost of energy. Stanford has saved slides and videos of the weekly seminars for the past 14 years (Go Cardinal!). As an example, here is a presentation from 2009 that said solar energy cost around 30 cents / kWhr and I vaguely remember discussions that suggested that the cost could reduce by a factor of 5-10 over the next 10 years. I will admit that I was somewhat skeptical. I've not followed this evolution as closely as I should have, but I recently looked it up, and have been amazed. See the plot below

This is simply remarkable! All the curves are interesting, but let's focus on PV (i.e. Solar panels).  The associated report from the International Renewable Energy Agency (IRENA) is fascinating, and has a lot of detail (see fig 1.3 for instance), but the relevant takeaway is that solar energy sold at big auctions averages around  4 cents / kWhr. Note that the range for fossil fuels is 5-15 cents/kWhr! 

The report says that this year "up to 1200 gigawatts of existing coal-fired capacity would cost more to operate than new utility-scale solar PV would cost to install". Of course, numbers are numbers and IRENA may or may not be biased in its accounting, but the conclusion is straightforward: Solar is in the same ballpark as fossil fuels and is extremely competitive.

The Local Picture

Clearly, energy generation is going to change in a big way, but I also wanted to see what Solar panels can do for me, now. I've attached the breakdown of my electricity bill at the bottom of this post, but effectively, I pay 15.5 cents / kWhr + $11/month.

Average monthly usage : 400 kWhr. Daily : 13 kWhr

Average monthly bill = $80

From the internet, I can infer that a 3 kW solar system will generate about 13 kWhr per day. Let's be conservative (Michigan!) and say that it takes a 5 kW solar system to do the job. The cost of the 5kW solar system seems to be $14,000 (with 30% federal tax credit).

For reference, here is a friend's 10kW unit which cost him only $24,000, and here is his energy production in March (March was brighter than average). He easily generated 30kW-hr/day in March! In Ann Arbor!!!

Not to belabor the point, but here is a neat NREL website that tells us what to expect in any location. I plugged in a 10kW panel for Ann Arbor, and I got the following estimate (which happens to be spot on!). 

These numbers are great : a 10kW panel gets you 1 MWhr/month in Michigan, 1.25 MWhr/month in San Francisco and 1.4 MWhr/month in Arizona. Not as big a difference as I would've imagined!

The bottomline is that we can breakeven in less than 15 years. This doesn't account for the fact that you can sell electricity to the grid (in which case, we could breakeven in say less than 10 years). I've  ignored things like financing, but the 10 year number is quite reasonable.

Let's work out some numbers on the 5kW panel:

The cost of the solar panels is about $2800/kW-installed. 

Conservatively the panels will generate about 24 MWhr/kW-installed of energy over its 25 year lifetime

Thus, conservatively, buying the panels is the equivalent of paying 11 cents / kWhr.

Note that we are currently paying 15.5 cents / kWhr.  

Our utilities provider buys back excess energy at 8 cents / kWhr.

Local vs Global question

It is obvious that solar panels make (and has made for the past 5-10 years) economic sense at a personal level. However, since utility providers themselves are going to integrate much more large scale renewables into the grid, I am not super sure whether it is going to make sense (from a tree-hugging perspective) to install solar panels @ home say 10 years from now. But that's a good problem to have. Another BIG question is how to recycle/ dispose these panels.

Interesting times. 

================================

My Electricity bill

Power Supply Capacity Charge 433 KWH @ 0.045000 $19.49 

Power Supply Non Capacity Charge 433 KWH @ 0.041760 $18.08 

Power Supply Cost Recovery 433 KWH @ 0.003220 $1.39 

Delivery Charges Service Charge $7.50 

Distribution 433 KWH @ 0.066110 $28.63

LIEAF Factor $0.91

Other Delivery Surcharges $2.56 

Residential Michigan Sales Tax $3.11 

Total Charges $81.67

Most amazing sporting achievements of the 21st century while facing adversity

India beat Australia in Brisbane to win the series in test cricket on Jan 18th 2021. This is the long form of the game - played over 5 days, and it comes down to true grit. It was shocking for many different reasons. Imagine if the Miami Heat had beat the Los Angeles Lakers in 2020 missing Butler AND Adebayo AND a few bench players while starting 2 rookies. But more explicitly,

- India was severely depleted, losing their captain (the best player in the world),  and more than half the team to injury (including the entire first string and most of the second string bowlers). They also lost players in the middle of matches (and they can't be replaced).

- Australia has the best bowling attack in the world, and all 5 of India's bowlers were debutants

- Australia is close to unbeatable in a series at home, and also hadn't lost a game at Brisbane in 33 years. India is no slouch (both countries are comfortably in the top 3 in world cricket), but unlike in any other sport, the home country has a big advantage because of the playing surface (India is close to unbeatable in India, and the difference between the surfaces is like the difference between the French and US Opens in tennis).

- India had been embarrassed in Game 1 and were bowled out for their lowest score ever (Imagine the Heat scoring 50 points in a game), came back and won Game 2 and looked like they were going to lose Game 3, but held on for a draw. TV networks showed India had about a 1% chance of winning Game 4 on the last day.

There are many other subtleties, but I will not go into it. Perhaps this gives some insight (for higher level, here is the New York Times highlight!). So given all that, I was thinking of comparable sporting achievements in the face of adversity in the 21st century. I had to set some rules:

- Individual games don't count. I am sure we can all find thrilling individual games and comebacks (Tom Brady's Superbowl 51 comeback, for instance). Has to be a championship or a very important series of games (e.g. Sox vs Yankees)

- It has to be somewhat significant in the global scale (or at least matter to 10s of millions).. that rules out US college sports. But even if we keep college sports, nothing measures up in College Football (big guys always win the championship,) and the closest in college basketball is if George Mason had won the NCAAT or if Butler had beaten Duke without Gordon Hayward (but they didn't and had Hayward). 

So there are 4 categories. Talent differential between teams, Adversity faced (i.e. how close were they to losing, injuries, etc), Achievement relative to the biggest prize in that sport, and  Shock value of the result (i.e. how surprising the result is, independent of other factors)

Here is an unranked list of similar events with scores out of 10 in each category.

Team                                          Year     Talent  / Adversity  /Achievement/  Shock

                                                                 Diff    /    faced       /(in that sport)/  Value             

Leicester city wins the EPL        2016       10                 3                   8                   10

Redsox beat the Yankees            2004        3                 10                  8                     4

Cavaliers beat Warriors              2016        6                  8                  10                    8

Greece wins the Euro                 2004       10                 3                    9                   10

India beats Australia                   2021        7                  9                    8                    8

Liverpool wins the Champs L.   2005        6                  9                    8                    8

Giants win the Superbowl          2008        6                  4                   10                   8

 I am sure I am missing some obvious ones (in Rugby and NHL, for instance, so this will be updated...)