Learning languages
I am not an avid language learner, but I am about to reach 2,5 years of learning languages with duolingo. My first focus was on Indonesian and since around one year I am getting familiar with Esperanto.
Both are very interesting in different ways:
The basics of 🇮🇩 Bahasa Indonesia are very easy to learn. It mostly uses the order of subject-verb-object, makes intensive use of pre- and suffixes to change word meanings and has no genders, no inflections on verbs nor tenses by changing verb forms. Plural forms are mostly doubling the word and it uses the Latin alphabet.
Esperanto on the other side is clearly planned and when you have some knowledge in European languages, mainly Spanish/French, English and German, you will quickly realize that the vocabulary is more or less a mashup.