soliveiraigor/studysessions

soliveiraigor/studysessions:

+0.986 due

or pay $10

Forces 2.5 hours of study every single day. A weighted formula prevents relevant buffering.

Data for this goal is manually entered.

DAY	DELTA	TOTAL
Today	+0.986	59.53989
Tomorrow	+1.986	60.53989
Tue (31st)	+2.986	61.53989
Wed (1st)	+3.986	62.53989
Thu (2nd)	+4.986	63.53989
Fri (3rd)	+5.986	64.53989
Sat (4th)	+6.986	65.53989

Datapoints ?

Your actual reported data. The color shows where you are with respect to your bright red line:

Green:
> 3 days of buffer

Blue:
~ 2 days of buffer

Orange:
~ 1 day of buffer

Red:
crossed the red line
Bright Red Line ?

Keep your dots on the good side of this bright red line!
Colored guiding lines ?

The orange line shows one day of safety buffer. The blue line is two days, and the green line demarcates seven days of safety buffer.

(If you keep your safety buffer at 7 days or higher then you're immune to being stung. If anything comes up, just flatten your bright red line. It will take effect after the 7-day akrasia horizon but since you have that much safety buffer, you're golden!)
Yellow guide lines ?

These thin yellow lines indicate the good side of the bright red line.
Akrasia horizon ?

This line is a week away from now. You can only make changes in the steepness of your red line beyond the akrasia horizon.
Pink zone ?

This shaded pink zone on the wrong side of your bright line shows the bare minimum that you are committed to doing this week. Your red line can never get easier and dip into this forbidden zone.
Infinitely safe region ?

This light yellow shaded region shows the infinitely safe area. If your datapoints are in this zone, then you have exceeded the final total of your graph, and your safety buffer is unbounded. You usually see this as your goal approaches the end date, or if you have an infinitely flat bright red line for some reason.
Skull & Crossbones ?

We fly the Jolly Roger on your graph if it freezes. The primary way this happens is if you derail when your graph is scheduled to be archived.
Watermarks ?

The watermarks in the corner regions of your graph (shown darker here) indicate your current pledge amount and how much safety buffer you have. How safe you are is shown on the good side of the red line, and the amount pledged is shown on the derails-this-way side.

Features not enabled on this graph:

Optimistic projection (deprecated) ?

An optimistic view of progress, i.e., a view of your data through rose-colored glasses. It shows your inexorable march towards your goal. If you're bouncing around it just shows you flat. When you go down (or whichever direction your goal is), it shows you that right away.

It never shows you going up (or whatever the wrong direction is) unless it's sure you've screwed up.

If you find the random fluctuation unnerving, you can focus on the pink dots day-to-day.
Moving average ?

This is a moving average implemented as an IIR filter. If most of your daily numbers are below this trend line then you are inexorably dragging it down.

For the case of weight loss, this was inspired by The Hacker's Diet as a way to see the forest through the trees, to see past the daily random fluctuations to what your weight is really doing.
Smoothed trend swath ?

Think of this as a very thick line charting your progress or an aura around your actual data. It's like the moving average line but fatter and smoother, and it extends past your actual data as a kind of projection into the future, in case that's useful. (Gory details on the blog.)
Max flux ?

This thicker yellow line denotes the user-specified maximum daily fluctuation, shown as an offset from the bright red line. Details in the FAQ.
Standard flux ?

This dashed yellow line indicates a so-called 90% variance derived from your data, shown as an offset from the bright red line. Details in the FAQ.

This goal has the following fine print specified by soliveiraigor:

📅 Last Updated: 2026-03-22

📉 LOGARITHMIC DAILY HABIT (NO-ZERO DAYS)

This goal tracks study consistency via Toggl Track + n8n to enforce a daily habit. It uses a logarithmic formula to reward showing up while heavily discounting long "marathon" sessions to prevent the accumulation of an massive safety buffer.

🧮 THE FORMULA
Score = Log2( (Hours / 2.5) + 1 )

This curve ensures that while the first minutes are highly valuable, every subsequent hour is worth less than the one before it.

📍 SCORING CHEAT SHEET (Approximate)

0.5 hours = 0.26 points

1.0 hour = 0.48 points

1.5 hours = 0.67 points

2.0 hours = 0.85 points

2.5 hours = 1.00 points ⭐ (Daily Target)

4.0 hours = 1.38 points

5.0 hours = 1.58 points

⚙️ TECHNICAL RULES

Data Source: Only time tracked in Toggl under designated study projects is valid.

Sync Logic: n8n pushes data whenever progress is detected or at 23:59 (America/Sao_Paulo).

Daily Reset: The formula applies to the cumulative daily sum. The "requestid" is set to the date, so Beeminder overwrites previous entries for the same day with the latest total.

Manual Entries: Strictly reserved for technical failures; must be documented in the comments.

🎯 PURPOSE & COMMITMENT
This goal is my "Floor." It works alongside a separate volume goal. While the volume goal allows for buffer, this goal mandates showing up every single day regardless of how much work was done yesterday.

⚠️ BUFFER LOGIC: Because the formula allows scores above 1.0, it is possible to accumulate a small safety buffer. However, the logarithmic scaling makes this intentionally difficult; to earn significant "time off," I must commit to studying well above the 2.5-hour mark for several days. The idea here is to allow for some rest days, preventing burnout.

Amounts Due By Day

Goal Progress

Stats

Graph stats

Data stats

Graph Legend