A little logic puzzle

As a respite from political news, here is a nice little logic puzzle.

Alice and Bob are two infinitely intelligent logicians. Each has a number drawn on their forehead. Each can see the other’s number but not their own. Each knows that both numbers are positive integers. An observer tells them that the number 50 is either the sum or the product of the two numbers. Alice says to Bob, “I do not know my number,” and Bob replies, “I do not know my number either.” What is Alice’s number?

The above link also points you to the solution.

Sportsmanship at the Olympics

I love to read about acts of sportsmanship and this article highlights six of them at the current Olympics. One of the nicest was the USA’s Simone Biles (silver) and Jordan Chiles (bronze) bowing to Brazil’s gold medal winner Rebeca Andrade at the podium.

Speaking to TODAY about the move, Biles said, “I think it’s all about sportsmanship, and we don’t care whether we win or lose. We’re always going to keep a good face and support our competitors because they’ve worked just as hard as we have for that moment.”

“So you have to give them their flowers,” she continued, speaking about the bow. “And that’s exactly what me and Jordan were doing, and we were so happy for her. She deserved it. She had the best floor routine of the day and in the Olympics. So it’s like, yeah, she deserved it.”

“It was just the right thing to do,” Biles said, according to the Associated Press. “She’s queen.”

Biles seems like a really classy person.

Julien Alfred wins 100m gold at Olympics

I only follow the Olympics cursorily, consisting mostly of scanning the headlines in the news sites that I read. Within those, I am mostly interested in the track and field events and the stories that grab me are those of athletes from small countries that have next to no infrastructure to produce top athletes and almost never win medals.

And boy, did these games produce such a story!

Julien Alfred from St. Lucia, a tiny country in the eastern Caribbean islands that has a population of just 180,000 and had never produced any medal winner before, ran away from the competition to win the 100m gold medal, the most prestigious of the track events. (Click on the ‘Watch on YouTube’ link.)


[Read more…]

It’s good to know when to abandon a plan

I learned that in order to write, I could not depend upon the muse to inspire me but instead had to have a regular writing schedule that would compel me to write every day. That experience resulted in me even writing an article titled Seven Suggestions for Becoming a More Productive Writer in which the first suggestion was to set aside time every day to write, whether one wanted to or not. I like to quote Peter de Vries who said, “I write when I’m inspired, and I see to it that I’m inspired at nine o’clock every morning.”

It is similar to exercise. For most people, physical exertion is not pleasant but seen as a necessity. We are told that having a regular exercise routine, or ‘plan’, is a good thing. Having a steady daily routine is a good way of maintaining discipline. Ad hoc exercise, where you do it only when the mood strikes you, tends to not work well because other things that are more interesting or seem more important can easily distract you, whereas if you prioritize a set time for exercise, you are more likely to stick to the plan.
[Read more…]

Cricket World Cup update

The T20 World Cup now entering its final stages has seen some major surprises. One of the biggest was the rank outsider US team beating perennial powerhouse Pakistan in its group game. That proved pivotal in taking the US to the second round of just eight teams of the 20 that started out, with Pakistan not making it. Then we saw another powerhouse New Zealand get completely routed by Afghanistan in their group game, enabling the latter to make it into the final eight while eliminating the former.

In the games involving the final eight teams, Afghanistan pulled off another shocker by beating Australia, the team that, along with India, were favored to win the tournament. They then went on to beat Bangladesh, propelling them into the semi-finals where they will play South Africa. The other semi-final will be between India and England.

It is clear that Afghanistan is the Cinderella team of this tournament and one hopes that they can keep pulling off these upsets and beat South Africa and then whoever they meet in the finals.

Ok is not ok?

I feel that it is a basic act of courtesy to acknowledge, however briefly, when someone has communicated with you via text message. So if they send me some information, I often will just say ‘Thanks’. If they have made a suggestion to which I agree (“Let’s meet at 10:00am”), I will reply ‘Ok’. If they ask me to confirm some choice (“Shall I come at 10:00?”), I will reply ‘Sure’.

I notice that some of the people will use the thumbs up emoji instead of words. But I am not an emoji kind of guy and felt that my words conveyed the same sense of agreement or acknowledgement.

But I am not an expert on social media communication and recently I was listening to a radio program and someone said that just replying ‘Sure’ was bad, in that it implied sarcasm, as if I had said ‘Yeah, sure’ in a disdainful voice. However, I was assured that ‘Sure!’ was fine.

She then went on to say that ‘Ok’ was even worse than ‘Sure’, which startled me since that is my most frequent from of acknowledgment.

I am not sure how universal this sentiment it. The mores in the world of online communication can change rapidly over time as well as vary a lot from person to person, so maybe ‘Ok’ and ‘Sure’ are ok despite what the speaker said.

Another monolith appears!

In 2020 there were several gleaming monoliths similar to the one that was shown in the classic film 2001: A Space Odyssey that mysteriously appeared in remote areas of the world. As far as I am aware, the question of who was responsible was never solved.

Now yet another monolith has appeared, this time in the Nevada desert.

Las Vegas police said on the social platform X that members of its search and rescue unit found the otherworldly object over the weekend near Gass Peak, part of the vast Desert National Wildlife Refuge where bighorn sheep and desert tortoises can be found roaming. At 6,937 feet (2,114 meters), it is among the highest peaks in the area north of Las Vegas.
…

In November of [2020 a similar metal monolith was found deep in the Mars-like landscape of Utah’s red-rock desert. Then came sightings in Romania, central California and on the famed Fremont Street in downtown Las Vegas.

All of them disappeared as quickly as they popped up.

The Utah structure, which captured the world’s imagination during the pandemic, is believed to be the first in the series. It stood at about 12 feet (3.6 meters) and had been embedded in the rock in an area so remote that officials didn’t immediately reveal its location for fear of people getting lost or stranded while trying to find it.

Hordes of curious tourists still managed to find it, and along the way flattened plants with their cars and left behind human waste in the bathroom-free backcountry. Two men known for extreme sports in Utah’s sweeping outdoor landscapes say it was that kind of damage that made them step in late at night and tear it down.

The article does not give the dimensions of the latest monolith but whatever its size, it is a pretty impressive stunt to pull off.

How did the dog find the camp site?

A man who was driving in Oregon with his four dogs, crashed his pickup truck through a guard rail and fell into a ravine. One of his dogs ran four miles back to the campsite where the family was and this alerted them to the problem and they managed to find them.

The case unfolded as Brandon Garrett was driving with his four dogs north on US Forest Service Road 39 in Baker county, near where his family was camping.

During the trip, Garrett failed to navigate a curve in the road and crashed over an embankment, according to a statement from the Baker county sheriff’s office.

Garrett survived the crash, but the accident left him stranded and forced him to wait – and hope – for help.

Thankfully for him, one of his dogs ran back to the campsite, and the animal’s appearance led the Garrett’s family to realize something had gone wrong. The dog ended up running nearly four miles through the wilderness before tracking down the other campers on 3 June at 9.30am.

What amazes me is that the dog was able to get back to the campsite at all. There have been many stories about the amazing ability of dogs to travel long distances to find their way back home. The article mentions the well known ability of dogs to use their sense of small. But it also mentions them having an inner compass that detects magnetic fields as aids. I had heard of birds using magnetism to navigate but had not heard of that applying to dogs.

Dogs do have an incredibly strong sense of smell that enables them to pick up the minutest traces of scents to track and navigate. But this dog was not going home. The group was camping so this was unfamiliar territory and, since the dog had been traveling by truck, there would have been no scent to follow back to camp. How did the dog know where to go?

US beats Pakistan in World Cup cricket shocker

In their Group A game, the US pulled off a sensational win against Pakistan in a thrilling match in which the score was tied at 159 runs each after the regular 20 overs but then won 18-13 in the ‘super over’ tie-breaker. It is hard to think of a good comparison that would give those who do not follow cricket a sense of how big an upset this was. It is like a college football team beating an NFL team, since the US team consists of amateurs who have regular jobs while the Pakistanis are seasoned professionals who do this for a living.

The US is participating in the World Cup for the first time and only because it got an automatic entry because it is a co-host. Pakistan, on the other hand, is a perennial powerhouse that made it to the finals of the last World Cup and its match next week against favorites India is expected to draw a viewership that is five times that of the Super Bowl, while this is the just the second game ever for the US. In their first Group A match the US defeated Canada and they still have to play India and Ireland in their group. For them to defeat India would be for lightning to strike twice but defeating Ireland is not unrealistic and if they do so, they would likely end up second in their group next to India and thus qualify for the next round. Part of the reason that the US was chosen to co-host this World Cup with West Indies was to help popularize the sport in this country and this win will undoubtedly help in that effort. This win has already created considerable media coverage.
[Read more…]