Interesting position. I like it.

It took me a bit of time to realize you can make money “out of the money” with options.

With options you make more money selling the option before expiry so the out of the money will have more theta value so you will likely get paid more. Also if theta is higher and the cost of the contract is low, you are getting more for premium (extrinsic) versus intrinsic value.

Are your Puts naked?

Long puts don't need collateral. Since he said "BTO" instead of "STO", naked or not is not applicable.

BTO = Buy to Open (open the position)

STO = Sell to Open

When selling calls, you want to hold the underlying, else you're naked. When selling puts your coverage is cash

Cool concept! I will check it out.

I am a big fan of redash.

It is really great in situations where non-SQL people ask if you can run a query or report for them.

It is amazing how quickly you can build up instrumentation with it.

Have you tried combining the tiles on-the-fly as image sprites?

https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Images/...

There are two kinds available currently for ceiling.

The cassette, that would fit into a drop ceiling, and there is also a mini-ducted unit, installed in the ceiling with small-run ducted ports.

My favorite are the ones that look like picture frames.

I was gonna say, the outlay of capital for a building-wide hydronic system and an evaporative tower, versus each owner be responsible for their AC, I can see why that would be possible.

Particularly if the building is older.

Also, I am curious why there are multiple single condensor units in lieu of multizone units...I guess it is financially easier to purchase one unit at a time.

These minisplit units are typically, at least 9k to 12k BTUs, and if it a multi-zone unit it can be 24k or more.

I have yet to see a portable AC in the US that is more than 12k btus and as quiet as a mini-split.

Mini-splits are more popular now in the US, but, for whatever reason, the US is really into ducted systems.

I never understood why putting an air duct in a hot attic and an air handler in a hot garage made any sense.

You do have me curious on traffic stats for HN by country, though.

A lot of central AC installations in the USA were added to the house some time after it was built, and the heating ducts were already there, so now they are used as the AC ducts too.

Do you have any more info about this?

I am curious about the history of residential HVAC in the US.

I only really know about it in the area where I live. AC was not generally included in new construction in the San Francisco Bay Area until the 1980s or 1990s. I wouldn't be surprised if a majority of apartments in the area still didn't have AC, based on the amount of window AC units I see.

However, most homes built in this area were built central ducted heating systems since the 1950s-1960s, when there was a massive building boom. Most older homes have had central heating added as a retrofit decades ago -- even old Victorian homes. So when people upgrade to AC today, it's very common to just use the same ducts.

It's not easy to find a house with a ductless mini split AC system around here. Most homes have a single-zone central system that cools the entire house.

Senators used to not be elected by the general voters. Instead they were elected by state legislators.

The 17th amendment changed this.