Index

LinkedIn yeraldinsotocastro@gmail.com Yeraldin Soto · UTC−5

Some things I learn because they are useful.

Others become useful later.

The Practice · 10 studies · 2026
  1. The desert.
  2. The foundation goes in first.
  3. It rises floor by floor.
  4. It takes its shape.
  5. The spire climbs higher than it has to.
  6. Above the clouds.
  7. Land that was desert. Now an address.
Burj KhalifaStudy · Dubai · 828 m

It stands on land that was desert. The land did not change; someone saw what it could hold.

Underwriting

I do not only underwrite land.

I underwrite what has to become true for a project to work.

Land.Subdivisions.Multifamily.Development projects.Capital improvements.Existing assets.Ground-up.Value-add.

Market
Who buys this?
What is absorbing? What is slowing?
Product
What exactly are we creating?
Land · asset
What do we actually control?
Cost
What does it take to make the project real?
Operations
If it already exists, how does it perform?
Capital
How is it financed?
Structure
Who carries which risk?
Time
How long does capital stay exposed?
Exit
Who buys it from us?
MarketProductLand · assetCostOperationsCapitalStructureTimeExit

Different asset. Same question.

What survives after the assumptions move?

Multifamily

Managing buildings taught me to read one four ways.

Physical.Operating.Financial.Human.

Physical
roof · MEP · units
common areas · deferred maintenance
Operating
rent · vacancy · maintenance
vendors · turnover
Financial
revenue · expenses · NOI
capex · return · valuation
Human
resident experience
management · service

A building is never only a building.

Finance and investing

I like markets for the same reason I like land.

They punish stories that do not survive the numbers.

  1. What changed?
  2. What is priced in?
  3. What is the base rate?
  4. What does history say?
  5. What assumption explains the current price?
  6. What would make the thesis wrong?
  7. Where is capital moving?
  8. How does regulation change the opportunity?
  9. How does infrastructure affect value?
  10. How do population, income and migration change demand?

I am increasingly interested in investing across different markets: Colombia first, and the growth markets of South America around it.

I read them the way I read a county before a project: population, income, migration, infrastructure, regulation, the currency, and what the price already assumes.

I am not a fund manager. I learn a market by studying it, and by taking part in it.

the storydatacomparisonprobabilitiesriskdecision
A way of reasoning — not a chart of any real market

I study markets, and I take part in them.

Statistical thinking

Distributions.Base rates.Historical ranges.Probability.Absorption.

Numbers help me test whether the story I am telling myself survives reality.

historical rangegrowth · risktimea price
A drawing of context — no real prices

A number becomes useful when I know what it is being compared with.

Architecture and construction

Materials.Sections.Joints.The order things were built in.

Construction eventually makes every idea answer to reality.

lightproportion

Structure is where imagination begins negotiating with gravity.

Languages

I learn languages to reach a culture, not a vocabulary.

What people say directly.What they soften.The joke that does not survive translation.The song that opens once the words do.

sobremesaover · tablethe long talk that staysat the table after the meal

A culture changes when it stops arriving through translation.

Drawing

I draw to look.

A stem does not bend where memory expects it to.A leaf is rarely symmetrical.An orchid root goes where it wants.

Drawing punishes assumptions.

Code and systems

If I can describe the system clearly enough, I increasingly want to build it.

A scheduled check.A small tool that moves information.The way a paper airplane turns a chapter on this site.

var draw = easeOut(clamp01(f / 0.35)), fly = easeInOut(clamp01((f - 0.2) / 0.75));
js/motion.js · the paper airplane on About

How I use AI to build it lives in Inside My Mind.

Reading

I read slowly, and I read the same pages more than once.

Kenkō.Krogerus.A county ordinance.A title commitment.

The ordinance and the essay ask for the same attention.

first readingagain

A book I finish quickly is usually one I did not need.

Writing

I write to find out whether I understood it.

A sentence that will not come out straight is usually a thought that has not finished.

A memo.An entry.A note I never send.

what was left

Everything here is a notebook. I am in no hurry to call it anything else.

Everything I practise is an outline around something that won’t hold still.

I learn languages badly, and then less badly.