Si takes in the present by comparing it with past experience. When it meets a new situation, it first recalls a similar time.
Si is a way of perceiving that compares the present with past experience. When it meets a new situation, it first recalls a similar time and checks what went wrong then.
That is why it does not repeat the same mistake. It remembers what it has experienced down to the details, so next time it prepares for that part in advance.
It compares what is happening now with memory. It checks what is the same and what is different, and looks for risk in the parts that differ.
That is why it is strong with details. Even things others overlooked, it finds precisely if they caused problems before.
When a new method is proposed, it first thinks about what could go wrong with the change. So it wants to check things before anything else.
It is not opposition but a request to look into it further, though from outside the two are hard to tell apart. Explaining not only what will improve but also what could go wrong often gets agreement faster.
It is strong in work where getting things exactly right is the result. It checks everything to the end without missing anything.
It also suits work that has to be kept going for a long time. It keeps to a method once decided without changing it, which earns the trust of the people around it.
They look at things by different standards. Si compares the present with the past. Se looks at what is happening now for what it is.
So they react differently in new situations. Si looks for a similar time and responds based on it, while Se judges as things happen. Both are sensing functions, but they refer to different things.
When Si is very strong, it is hard to change a method that has worked before. It is safe, but it sometimes means missing new opportunities.
At a moderate level, they use their experience while also trying new things. When Si is weak, they are more likely to repeat mistakes but accept new methods easily.
The assessment also measures how strong Si is. Even within the same type, people with different Si scores handle change very differently.
This page describes behavior patterns for self-understanding. It is not a medical or psychological diagnosis, and it does not replace professional care. If difficulties persist and disrupt daily life, please seek professional help.
This page covers the type in general. How it actually shows up in your own combination is what the measurement tells you.